Why girls only care about money and material things?

over the years , I noticed girls' hypocrisy they always claim that they care about a guy's heart , but they will dump you as soon as they see their chance with a rich guy , i have been rejected by a lot of girls , most of them were my friends only to see them a while later with a rich brat with a fancy car , who can't even stand up for himself , then i came to a solution that i am poor guy and i just gave up and accept it , why do you care only about money and yet most of you complain that they don't find " real love " .
Why girls only care about money and material things?
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