It's the humankind, we put ourself over weaker to show our status in society. We want to have a good status/reputation that everyone respects us. The problem here is, that it's a circle, without the ambition to put ourself over ohters, it wouldn't be there. But what would the poor guy do, if he is rich? Maybe it's immoral and shouldn't be done by the woman, but this is basicaly real americanism and capitalism. Everyone theoreticaly has the chance to be the rich, when you build wealth up and went from poor to middle or high class, you maybe feel still threaten by competition? I don't know these are just random thoughts.