I think that is a healthy point of view that many would agree with. The real debate is the flip side of that- when advantage turns into expectation. For example, I know I am lucky simply because I was born in America, but should I push for policies that insure that my children keep that same advantage to the detriment of someone else in the world who doesn't get a fair shake based on their merits because my children get an artificial boost? I think modern liberalism would say no to the validity of given an advantage to Americans based on imaginary map lines on paper, while many Trump voters translated "Great Again" in his slogan to mean that exact rejection of globalist thinking.
I think one problem the modern Democratic Party has is that they can't claim the high ground on income inequality. I mean this gap you are talking about hit new highs unseen since the 1930s under Obama:
And a big optics problem with the Clinton Campaign was how close she seemed to Wall Street.
I feel like the Democrats are going to have to reject cozying up to big business (even the Silicon Valley ones) and start focusing on more aggressive income distribution ala Bernie to get back an enthusiasm for the platform. People don't like be told that they can retrain into a new working wage job, or that they can (barely) afford an exchange healthcare plan thanks to a subsidy. The Democratic Party will win again when it offers free college meaning bachelor degrees and not associate ones, and when it offers free healthcare and not "less expensive healthcare if your state approves it."