I agree the nazi bar analogy is still valid in this case, dude was part of the nazi party and benefitted from the atrocities.

The unfortunate reality of WW2 is that a lot of our modern understanding of a lot of fields of science come from the horrors conducted by all nations, we learned extensive amounts of what is medically possible from the cruel unforgivable experiments done on people by the Nazis in concentration camps and by the truly horrific experikents by Unit 731. The breakthroughs in manufacturing to ramp up war production. We went from planes made of balsa and canvas to fighters and bombers made of metal carrying payloads never before possible. The harnessing of the atom by US scientists for atomic weapons. We literally wiped previously inhabited islands in the pacific off the face of the map in nuclear testing, we chose the worst possible domestic location for nuclear testing that carried radiation across the whole nation, that Kodak picked up on the testing in Rochester NY.

I'm not saying this to excuse what the Nazis did, they were clearly far far worse with their scientific experimentation.