Earlier quoted context omitted.
Wealth is not the same as class, either. Even in America. A teacher with an annual salary of $60k is higher class than a plumber making $100k annually. Unless the teacher is black, of course, then racial elements of class come into play.
I agree that wealth is not the same as class, but just as a counter anecdote, my dad is a (small business) plumber and I never felt like we were treated less than any other middle class family. If anything, it seemed like people were often really grateful and giving random gifts like food from gardens or tickets to local events.
If they didn't do that to other middle class families then they saw you as less than them. Seeing people as less comes both with charity and contempt, not just one of those.