Adolf Heusinger, a senior Nazi army operations chief who later led West Germany's military and then NATO's Military Committee.
In the engine he is a stark example of how skilled operators get reused rather than punished after a regime falls.
As Operations Chief of the German army high command (1940-44) he helped plan the invasions of Poland, France, and the USSR, was captured and testified at Nuremberg, was fully rehabilitated, then became Inspector General of the West German Bundeswehr and Chairman of NATO's Military Committee (1961-64).
He matters as proof of the engine's point that the system doesn't discard competent people for their past — it redeploys them into the next power structure.