OT: I've always wondered, if some multi-billionaire became personally offended by some lesser multi-billionaire and decided to destroy them, what could they do? Assume that they don't want to do anything illegal enough to get themselves into serious trouble.
For example, suppose Bezos decided he really hated Rupert Murdoch ($15B). If Bezos decided he could happily live on a mere $100B, that would leave him $50B for the "Destroy Murdoch" project. Might not be able to actually destroy Murdoch for that, but could probably make his life very annoying.