Not true. Leopold and Loeb, The kid who killed Martha Moxley,(Skakkel), OJ, some of the Kennedy kids in the past, I could go on. Sometimes they are the worst and most unrepentant, they have a superiority complex combined with their psychosis..
Because sometimes, the poor thinks the only way to provide for their family's or themselves is to sell drugs, break into homes, or steal from people. We're rich people don't really have to worry about stuff like that.