because no-one will ever be able to make enough money to challenge the position of the super wealthy. The super wealthy, barring extreme inflation and unavoidable estate taxes, would become the permanently super wealthy.
is there evidence that there presently exist people who challenge the super wealthy who would be immediately and obviously affected by the tax?
Even a single example would be helpful
You should be able to avoid this via properly designed and implemented marginal tax brackets.
I'm guessing because actual wealth accumulates though capital gains and income sources that are not classified or taxed as "income"