Straw costs money, increasing the price of raising animals, increasing the cost of food. This is the drawback of every regulation: it increases the price of the regulated product. This increased burden is obviously felt the most by the poorest.
Sometimes you just need to invest a little. Paying the least is not always the best solution. If the burden is shared among a large group of people, the burden gets per capita automatically less.
A bit of a hyperbolic situation, but it is pretty much reality :
Look what is happening with the cheapest food in the US ? What happens to the people eating it ? The burden on society is a lot more. It seems cheaper but when you look at the entire situation. Overweight, diabetes, not able to work full hours(assuming there are jobs), often calling in sick, special cares for people with diabetes or with other chronic problems... It all costs a lot of money too. Health insurance goes up. These are all things that must be taken into account as well. In the end that cheap food is more expensive on the whole society then a bit more expensive food but a lot healthier.
The big question here is of course, how does this effect the consumer when looking at the quality of the meat and what is added to the animal ? For example, if that animal is saturated with antibiotics, does the consumer ingest these antibiotics as well ? Does the antibiotics have an effect on the symbiotic bacterial life we carry around.
For example, we can get other problems because slowly antibiotics get less effective. This causes complications or simple bacterial infections after surgery to become a serious issue. In todays hospitals, bacterial infections and the cleaning up and sterilizing costs millions. Is it related, that is sure interesting to find out.
It is just shifting the burden. But It seems a bit of a mantra for unregulated free market enthusiasts : "It is not my problem i payed cheap, why should i care ?"
It is from a certain perspective just as physics. Nothing is for free. Energy never disappears, it just changes into a different form.