I dunno, but in my experience generally speaking the folks at top companies are well adjusted and have lots of interesting hobbies, at least the ones I know of at FB and a few startups. My guess is it's a consequence of graduating from elite institutions.

Engineers are pretty much never the heroes in Hollywood productions, they're usually portrayed as sidekicks at best, and usually pathetic objects of scorn. The Big Bang Theory is just the most obvious example.

Hollywood is full of negative stereotypes of all sorts, especially of women (an entire gender); and well actually men too. it’s not a good barometer of this.

Counter-example: Ironman.

Though, I guess he's also a rich playboy who happens to build robots powered by advanced AI.