The ability to tax extremly large accumulated wealth is very positive. Don't forget, bilionares have succesfully exploited weakneses of the current tax laws.
1. Capital Gains Are Favored
2. Dividends Are Tax-Advantaged
3. Payroll Taxes Are a Non-Issue
4. “Buy, Borrow, Die” Strategy
https://www.americans.com/money/see-why-warren-buffett-pays-...
We have to not obly fix the current tax laws, but also fix the results of past tax laws (extreme concetration of wealth and power).