I figured I'd start a new post for this since it didn't really belong under the oil prices thread and draeco was getting all uptight about it.
The entire list was thoroughly investigated and found to be simply typical technical people that were obsessed with their science.
I think it's rather crazy to believe that they were all just simply men devoted to their science. Many of the scientists brought over in operation Paperclip were, in fact, ardent Nazi's. Many originally had their visa's denied when first trying to get into the US due to this but the denial was eventually reversed since we needed their expertise.
After the war, you had John J McCloy, who at the time was Assistant Secretary of War, shelter the butcher Klaus Barbie from prosecution and assisted in getting him to South America.
You had Albert Speer, a Nazi scientist who was eventually prosecuted for war crimes, live out his days comfortably in England. He did do a stint in jail but for a while it looked unlikely he was going to get prosecuted. Immediately after the war, he traveled around Europe briefing many military officials on the inner workings of Hitler's military programs. What's curious about Speer is that transcripts of his interrogation by Allied officials are sealed until 2020, an exception to the standard 30 year rule.
You have Dr. Hubertus Strughold, who is considered "the father of US space medicine" smuggled to the US immediately after WWII. This man was involved in barbaric experiments at the Dachau concentration camp and was also sought for prosecution at Nuremberg.
Then there's Hans Kammler, the man who built Auschwits and Nordhouse. There are no official records that the US ever spoke or even sought out Kammler at the end of the war, which is a very suspicious oversight on the part of the US. Unfortunately, he magically disappeared in 1945 and it's likely he was smuggled off to South America.
As you said, BB, it's likely there's far more people that we don't know about who were guilty of war crimes and that escaped prosecution thanks to the quick actions of some Allied officials.