Remember that Apple (etc) have been troubled at many times through their history with him at the helm :)
Gates also eventually left in part because he was doing more harm than good (and has tried to turn himself into a more reasonable person it seems).
Compare that to the organization that MS is now under a leader who isn't an asshole?
I'm certainly not going to claim you can't make a successful company or organization by being a brilliant asshole. I'm only claiming it eventually catches up with you, and over time, ends up a net negative for the organization.