It's that lower and middle class people can only think about money, they take for granted that they dont have the problems of the rich, and dismiss those problems as non-issues because money.

I wouldnt say they can only think about money, it's that they have to only think about money. Plenty of people don't get to be with their friends and family because they gotta work their ass off to provide. Filthy rich people just have different problems, but grass is always greener. Everybody says "being rich isn't all it's cracked up to be" and some people say "I'd trade everything to get my family financially healthy".

There's a healthy balance somewhere in between that. If you have an annual salary of 6 figures, you can enjoy a really nice life with your family without worrying about everyone you've ever known asking you for something.