Surely he'd have to shave off that silly square mustache. It's so iconic of folks like Hitler or Chaplin I don't think any villain could be taken seriously with it.
The man's commanding officer who saved his life was Jewish, along with his family doctor growing up and many of his friends in Vienna.Also just realized, we're neglecting another factor: Anti-Semetism.
Before you grab the pitchforks, bo of course I'm not insinuating that Dolfie was some crazy Jew Hater. Well, he sort of was - before the Great War though. He even admitted it himself, considered it the thing he was most ashamed about his youth. Of course serving alongside Jews in the trenches helped snap him out of his bigotry. But what if he somehow retained that hatred?
I mean, maybe he could have some moment that sucks the humanity out of him
Perhaps a more traumatic time in the German Army during the Great War? That crap would've destroyed anyone.