They could, collectively, save themselves in a fairly trivial manner. All they'd have to do is suck it up, let governments tax them, and purchase legislation benefiting the great unwashed (i.e. the 99%) with the same zeal applied to purchasing legislation designed to maximize profits and minimize business risk.
It won't happen, of course. Rich sociopaths are psychologically incapable of seeing themselves as evil, or as the cause of their own problems, and so we have another "French revolution" cycle approaching. It's evolution in action, of course. The problem will be whittled down a bit as wealthy sociopaths are killed en masse and the world gets its parasite load back down to a survivable level, until the cycle happens again.
And it will happen again.