Crimes generally don't pay and are not worth anyone's time. The reason poor people imagine billionaires commit lots of crimes is that the poor people don't know how to become rich; if they did, they would've done it already. Since they do know how to commit crimes, they imagine that's how you do it but bigger. The reason criminals commit crimes is that criminals are dumb and have poor impulse control.

(This is the same concept as "Trump is the poor person's idea of a rich person." He actually did get there through crime, which is why poor criminals like him, but he's inhumanly lucky.)