How do your expectations of a person differ depending on how much money you think they make?

I have friends who worry about other friends’ financial situations. Like, if they think the person is not so well off, they worry about going to a restaurant that might be beyond their budget. Then they get a bit annoyed that they can’t go to a restaurant they really want to go to. They don’t feel like they can treat the person because it might be insulting.

Then there are people who try to make it look like they make more money than they do, because they think that they will not be accepted as a friend or even in the social group if they seem like they are too poor to be peers. Do you tend to hang out only with people who you think are in a similar income bracket? Do you make allowances for friends who you believe are in different income brackets? Do you even know or concern yourself with what your friends make?