I've often wondered at the evil that took place, Hitler didn't do it all alone. He had a lot of help and seemingly "normal" people went along.
I think forcing the German people to look at what they allowed to happen was the right thing to do.
Hitler had a 'gift' for finding the right people for the job he wanted done. And most were not from the slums.
Himmler was the godson of one of the Bavarian princes, and his father was a school administrator. Himmler attended college and technical school.
Heydrich spoke seven languages, was an Olympic class fencer, flew combat missions with the Luftwaffe, and was a very good violinist [his father was a professor of music, with his own conservatory]. Both Himmler and Heydrich had siblings, none of whom were criminals.
Speer, who ramped up German war production as Minister of Armaments was a trained architect [and gave Fritz Saukel to slave labor quotas Saukel was tried at Nurenburg for filling]. Kammler, the SS general who was resonsible for building projects, including the camps was an architect. So, I believe, was Col. Blobel, the CO of unit 1005, and the officer responsible for the Babi Yar massacre.
SS officers involved with the Einsatzgruppen included a plethora of lawyers, a former Opera singer and an ex- minister. Heydrich's staff was loaded with lawyers.