I know them as much as the comment above me knows Kanye. Being an asshole is a public persona, and each of those people has been called or referred to as an asshole.
edit: and there are plenty of anecdotal "Kanye is a nice guy when you meet him" stories as well. Evel Knievel sued Kanye and described him as 'vulgar an offensive', after they met he said "I thought he was a wonderful guy and a gentleman":
Laughing at 'Bill Gates is an asshole.' I've heard this anecdotally about everyone on your list, but not about him. People malign Microsoft and Windows, but please show me anecdotes about Gates the person being an asshole.
You haven't been around the tech scene long have you? Gates has a well-known reputation within MS as ruthless, snarky, and yes an asshole at times. See the numerous references to his (famous if only anecdotal) refrains when unsatisfied with someone else's work.
Also read Paul Allen's book -- specifically the part where Gates tried to screw Paul by diluting his stock.
Throughout the netscape vs IE era, Gates was considered a ruthless businessman internationally. The situation is 10 years old and fading, but asshole was definitely a predominant take on Gates for a long time
I respect you a lot and you sure have more information than most of us. But Mr. Zuckerberg called "dumb fucks" users who gave him personal information. I do not know him personally, but with that one in mind and the privacy issues of Facebook, I find it hard to see how he isn't.
i'm actually struggling to think of an idolized figure in tech who isn't an "asshole"
Maybe not as idolized as Jobs/Gates/Zuck, but there are non-asshole public figures in tech, such as Woz, Tim O'Reilly, Matt Mullenweg, Joel Spolsky. Being abrasive isn't a prerequisite to success.