It's impossible for a decent person to become a billionaire. Anyone who isn't a total sociopath would just stop and do something worthwhile instead a long time before they accumulated that kind of wealth.
@anon_opin
Two billionaires spring to mind that disprove that assertion.
Paul McCartney and Taylor Swift.

@mysturji @anon_opin if they are "decent persons" why are they still billionaires?
Surely they haven't need of a whole billion for themselves?

Afaik Dolly Parton has never been a billionaire, but that is because she keeps giving away her money via the Dollywood Foundation.
She is still filthy rich, but has also improved the lives for countless families in Tennessee.