Jobs didn't do Pixar. Ed Catmull did Pixar. Jobs was the investor.

The real payoff for Jobs with Pixar was that it made the iPod possible. Others had done MP3 players, but nobody had a good deal with the music industry. Jobs was able to do that for a Hollywood reason - as a studio owner, he outranked the music execs, and they had to take his calls. Hollywood is very hierarchical like that.[1] At the time, Apple was a nobody in the music industry, had no consumer electronics products, and was not doing all that well in desktop computers. It was heading Pixar that got him in the door at Warner, Sony, and Universal.

[1] http://www.rollingstone.com/music/news/itunes-10th-anniversa...