Call me radical but I’m totally ok with the idea of a 100% tax rate.
Should I or my business profit so much that money becomes trivial, I’d expect the state the step in and make better use of it. In fact, it should be considered a national security risk that those entities hold so much collateral.
And for those that are hard-of-thinking, the majority of that profit ordinarily goes towards paying their executives too much, further exploiting developing countries to increase margins and destroy competition, and lobbying politicians for all kinds of deregulation and to further erode worker’s rights and make more money.
None of which is in your interests.