I don’t see the contradiction. Humans can be emotional and at the same use science to make all humans life better! In fact why would we ever develop any technology that makes life better for others if we don’t have any feelings for them?
Personally the “hitler mind controlled everyone with his speach” theory that I was told in the 90s just isn’t convincing. Facism was in the zeitgeist around the world.
Mind control was how Yuri helped the USSR win the Cold war in Red Alert 2 (joke ;)
In other words, they believed it. It wasn’t a false manipulation.
It was a motivated belief, thoroughly uninformed by rational thought, and maintaining and spreading that belief took no small amount of blatant lies and cynicism.
-- Stephen Hawking