It was his position that taxing People at dramatically different rates was "fair". A bureaucrat would pick winners and losers via different "trip-wires" by which tax rates would suddenly elevate, and this long, complicated, agenda-driven taxation scheme was the most "fair".
My position that taxing everyone at the same rate (20%?) would be the most fair was laughed right out of class.
I have my own position on taxation, but a progresive income tax is probably one of the most unfair ways to tax someone. It is after all second on a list of 10 goals in the Communist Manifesto and was loathed by our Founding Fathers. We’re supposed to have equal protection under the law, but hey, the rich don’t “need” their money so what the hell?