Why do you think this should happen? That doesn't sound very rational to me. If you have more than you could possibly ever need then why would you choose to risk that? This is one reason why we should never reward people with these ridiculous levels of wealth in the first place.
> The best way to redistribute wealth is wealthy individuals overplaying their hand.
This sounds like a very wasteful and unreliable way to redistribute wealth to me. Unreliable because as you say it often doesn't happen. Wasteful because if it does happen it involves wasting enormous amounts of resources on a failed project.
IMO the best way to redistribute wealth is to not allow people to become as ridiculously wealthy as they are in the first place.