The thing that's scary about this is that pretty much anyone can be an asshole, and I worry about people doing just that in their attempts to emulate people like Ellison, and Jobs. Odds are, they'll certainly get the jerk part right, but probably won't create a huge company or great products.
You don't have to worry about that, because it's already happening. I see them everywhere. They wear all black. They write in all lowercase. They've seen The Social Network a million times and think that's what life is really like.
The good news is, in a real company this behavior is usually recognized and isolated fairly quickly... unless it's not.
Some of them write in all uppercase. I'm not joking or being sarcastic. If you run across someone who's a little too happy with the caps lock key... run like your life depends on it.
I know those guys too! Although I find it tends to be an age thing. The middle aged asshole writes in all caps, the 20 year old asshole writes in all lowercase.