regardless of income tax, every person regardless of income, pays tax on what they buy, so in a consumer capitalist society people need to have money to consume goods that are produced, otherwise the economy stagnates or goes backwards, as the rich have more money they need to be encouraged to spend, increasing tax on that, they can afford at the same not discouraging poorer people from spending needs careful thought.
Backwoodsman, I hope the cat next door has not been digging up your garden.