I don’t have an answer for you, but it seems feasible enough. If you decide to try it, let us know how it works.

None, because their corporations exist as separate legal entities that own their own assets, and their personal wealth would go to their next of kin.

The way to get the wealth out of the hands of the wealthy is to tax them, or to remove the legal system that would keep their wealth in their family when they die.

Can’t have a tank parade when all your tanks are currently planters for Ukrainian sunflowers.