I feel like that is another topic That is hubris whether you know it or not. "Perfect results every time"; that sounds exactly like the advertisements for the products.

Have you ever cooked professionally? Kitchens aren't filled with the effete. Ego? More like thousands and thousands of hours of experience, resulting in a - if it ain't broke, don't fix it! mentality.
Yup, I have cooked professionally! I shifted into IT but am still tethered in my local food community & currently support multiple food outlets, including restaurants & bakeries. Regarding immersion circulators & electronic pressure cookers, one of the key features of both machines is the ability to replicate pre-designed results. This doesn't apply to every type of venue (ex. specific cuisine restaurants where everything is made to order), but it is a huge productivity boost for many food producers! The BOH workflow enhancements from things like doing sous-vide chicken & then being able to split that out into everything from grilled chicken to chicken salad can be huge time & labor savings, particularly for the night prep crew. They even have IC's with data-logging available to support HACCP plans these days! One of my clients literally doubled her business thanks to adopting modern cooking methods & being able to support a larger menu with the same staff size, in addition to adding a frozen take-out menu.
The "if it ain't broke, don't fix it!" mentality is completely fine, particularly if they are running a personally-optimized system, and especially if that's all an individual person wants from life, but I feel like it cuts off access to things like new ingredients, new tools, new techniques, new workflows, more free time to do other things, and reduced stress. However, the ego side of thing is a real issue. It's not
everyone, but it's enough to be a big problem within the industry. I do think it's important to separate the definitions of ego, because there's healthy ego & there's unchecked ego, and unchecked ego is specifically what I'm referring to. On one hand, a healthy ego is a type of pride that is earned from running a restaurant (very difficult), keeping it afloat, mastering your craft, and being able to keep things going by producing & hopefully being good at what you do (which is a point I'd argue about, as there are plenty of restaurants with really super mediocre food that somehow stay in business for decades lol). On the other hand, there's also a lot of unchecked ego.
This is a good starting point on the issues related to that. Eater published a really great article on this topic earlier this year:
It took leaving the industry to see its problems in full focus, and to understand how wrong I was to stay silent about my experiences
www.eater.com
Another good article by Vice from a few years ago:
After critic Jay Rayner accused Gordon Ramsay-style kitchen outbursts of “glamourising bullying,” are restaurants calling time on abusive chef behaviour?
www.vice.com
And of course, the effects of the job itself aren't minor, either. The alcoholism & suicide rates are pretty high within the food industry. Anger & unwarranted, negative, uninvited criticism are enormous problems for people to deal with on a daily basis.
Of all occupations, "the hospitality and restaurant industry reports the third highest rate of heavy alcohol use (11.8%), the highest rate of illicit drug use (19.1%) and the highest rate of substance abuse disorder (16.9%) - all of which far exceed national averages...What’s more, while the industry ranks between the 13th and 19th for most suicides by occupation, it comes in just second in terms of suicidal ideation, with 5.7% of workers reporting they had considered killing themselves within the last year." It's gotten to the point where
occupational stress in the chef position is literally a researched issue.
Not only that, but "the employee turnover across the entire restaurant industry was 61% in 2016 and that percentage is almost twice as high for front-line workers." The Center for Hospitality Research at Cornell "estimates that the cost of employee turnover averages around $5,864 per person for a typical front-line employee." Any food service worker can tell you the woes of crap pay, garbage hours, junk health benefits, and being harassed by jerk bosses. But as the saying goes, people don't quit jobs, they quit people. Out of all of my customers, food service has, by far, the highest level of toxic work cultures that I personally deal with. One of the reasons I no longer work directly in food service is because it's really difficult to find a reliably good work environment to work within. Only a minority of eateries I've done service for have a solid coaching culture in place, and they're almost universally the privately-owned ones where they have a good captain for their ship (owner, chef, etc.).
It's easy to say things like "if you can't handle the heat, get out of the kitchen", but that's just ridiculous nonsense from bygone eras.
Everyone deserves to be trained well at their jobs & be treated fairly. I absolutely think people should have personal boundaries & take pride in their jobs, work quality, skills, etc., but to negatively criticize people without cause or re-training & to not be open to change & to embracing newer & better ways is 100% on those people as individuals. On a tangent, when I first got into home meal-prepping, I initially thought I wanted the best of the best food all the time, but as it turns out, sometimes I want a Whopper or a Snickers bar, and there's nothing wrong with that! Anyway, again, I think there's a difference between healthy ego & good-natured ribbing & the type of ego that causes people to feel bad & even to quit their jobs, which I've seen in nearly every single restaurant I've either worked in or done work for. Times are changing. People don't want to work for jerks anymore. The latest surveys say that more than 50% of hospitality workers wouldn't return even in a job crunch:
More than half of U.S. hospitality workers wouldn’t go back to their old jobs and over a third aren’t even considering reentering the industry, according to a survey that underscores hiring challenges for restaurants, bars and hotels.
www.bloomberg.com
Healthy ego? Definitely needed by most food service employees to work in a non-stop restaurant where you get hundreds of patrons & dozens of criticisms, both valid & not valid, every single workday. Unchecked ego? Prevalent, but no longer welcome, to the point where there's starting to be a sizable community shift in people not wanting to go back to crappy work environments, which is happening across all industries, but particularly within the food service community, which tends to harbor a lot of
sacred cow personalities & situations.