There are going to be arsxxxholes at every level of income. So of course there are some that are rich.
But to assume that everyone that is rich got there by cheating, stealing, or otherwise harming someone is a sad psychology.
Take a look at the work being done by Bill Gates Giving Pledge.
Do you believe that all the billionaires on the Giving Pledge got their money from cheating and stealing and causing harm?
I'd far rather leave the billions with these billionaires and let them work on causes they find worthy, compared to sending it all to Washington where it would vanish in the cesspool of corruption.