Also, I think that poverty is actually more correlated to stupidity and rudeness. I've read that stress can literally make your brain shrink from the excess of cortisol. Rich people are generally labeled with undesirable properties, which (at least in my case) often comes from a personal bias - it feels unfair to watch someone else have everything I want, so at least they're a bad person and I'm not, so I got that going for me, which is nice.
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To sidetrack a little bit:
> That's a very stupid criteria.
This is completely redundant - your point would be perfectly conveyed without this sentence. HN guidelines phrase it this way:
When disagreeing, please reply to the argument instead of calling names. "That is idiotic; 1 + 1 is 2, not 3" can be shortened to "1 + 1 is 2, not 3."