A parent of your comment cited a ProPublica study that references real tax return data that showed billionaires paying an effective tax rate in the single digits. If their accumulated wealth were regarded as regular income, they should be paying 37% on most of the gains. Look it up yourself.
If you look at “net” like you want to, sure, they pay far more in tax dollars than pretty much anybody, but they are able to legally dodge paying tax on most of their wealth accumulation because if the way the IRS treats unrealized capital gains.
Imagine doing away with income tax and replace it with a wealth tax payable in whatever wealth you have. % of your house, % of your investments etc