The greater issue is we allow the richest to basically print money via their stock based compensation, which allows them to turn unrealized gains into loans backed by these stocks. They can spend that all they want to influence politics and wield illegitimate power. If they can spend this wealth, they can be taxed on it.
Make stock buybacks illegal again too. Overturn Citizen's United unless the head of the company can face charges for the actions of their company.
The concentration of wealth into the highest strata is a recipe for societal collapse seen multiple times in history.