Use those other things for punishment then, don't sting them additionally just because they're wealthier (or rather, have a higher income).

Getting off track here, but I'd rather there were as few tax rates as practical. Perhaps even one under a basic income system. Then the rate is upfront, clear and honest. Not a compounding system of stealth taxes.

Worth noting that wealth is not the same as income, but we tend to tax income rather than wealth, at least until death.