Sorry, but half this list should not even get in here.
Rutan is involved in aeronautics, not IT.
Pincus is more on the consumer side of things, not really on the actual IT side of the house. Yes, Zynga is doing things with computers, but it's oriented towards individuals not organizations (which is where IT is really seen, in organziations).
Zuckerberg is sorta of eh. While the work of Facebook could be used by companies for inhouse communications, Facebook is really oriented towards non-organizations much like Zynga is.
Jobs is another eh. Apple is more of a individual oriented company, not really an organizational oriented company. Apple's targetted customer is not the enterprise, it is the individual, thus not really as IT focused as others listed (like Bevos with Amazon's cloud computing or IBM).
There are several people that should be replacing the four I just listed that are more IT focused.