I'm sorry but you're making a massive stretch by implying the either Einstein or Feynman were known as toxic assholes by basically anyone (except maybe Einstein's wives).

And while one can of course say that someone is a genius at a sport, I meant specifically intellectually, and even more specifically I wanted to combat the notion that it is common for software engineers to be geniuses and total assholes. I just haven't seen that frequently, and in fact usually the pattern is that the engineers who are typical assholes are, correctly, the least secure in their own skills and try and mask that with needless complexity (in code, communication etc).

I guess maybe my meta point is that I think intelligence generally fights toxicity, not the opposite. I'm sure you can find counter examples as humans are complex.