Can you think of anyone else dedicated to making computer technology beautiful and easy to use?

I can't. I'm not usually a fan of the Great Man theory of history, but I literally cannot think of any individual working in electronics/computing/software with a similar set of abilities and drives.

By default, computer systems tend to be ugly and hard to use. It took someone who wasn't primarily a developer or engineer to push the field in a different direction.

There really aren't many people with entrepreneurial skills and aesthetic sense who can manage engineers in anything like the same way.