If we were to leave it at him being an evil idiot - which he is - that still leaves him at the helm. He still gets to dictate what goes where because there are always useful idiots who will follow those dollars right into their own destruction in the name of ultimately making the evil idiot more rich.
It can't be left alone. I don't have anything like a realistic answer besides "make a law or ten prohibiting such people from doing such things and acquiring such incomprehensible wealth and power," but outside of that I've got the same secret dark wish as everybody else; that Ryuuk will drop his Death Note at my feet and then I'll rearrange society that way. Otherwise, I got nothin'.