"Asshole" is the word for a guy who likes to cut people off in traffic. I think there's probably a more appropriate word for someone who emotionally manipulates you over the course of years so you're continually a nervous wreck and can be destroyed any time it's convenient for him. Seriously if you haven't watched the interview I linked at least look at the first couple of minutes.

And at the end of the day, who did this behavior actually benefit? Steve helped make Apple a lot of money, sure, but where did most of that money go? It didn't go to the employees he abused, that's for sure. But maybe Apple products ended up benefitting society as a whole, and without Steve we wouldn't have had that? Well you already said that more often than not Apple's success didn't have anything to do with technical superiority.

The fact that people like this (Steve Jobs, Elon Musk, etc) often head successful companies isn't an example of how beneficial they are, it's an example of how broken our system is.