There were loads of loopholes back then. And before someone responds with, "there are loopholes now too, har har!": No, there really aren't those kinds of loop

There were loads of loopholes back then. And before someone responds with, "there are loopholes now too, har har!": No, there really aren't those kinds of loopholes anymore. The 90% income tax existed in name only, whereas today there actually are people paying ~50% income tax in the US.