How do you measure that, there’s no crime in Germany that’s in anyway related to the horrors of WW2 (I’m assuming). Most remnants feel guilty or ousted by society if they mention being part of war crimes. Very few would have found support in different parts of the world encouraging supremacy or something shady.

The purpose of punishments and prison system if to avoid repeat behavior which mostly happened anyways. So does still punishing them have any real value except for feelings of revenge?