I've spent a few hours reading the history of Pixar (it's controversial as to what role Jobs had, particularly around the "founding" - which he really wasn't) - and while I've come to the conclusion that Steve Jobs had very little (if any) role in actually running Pixar, he appears to have had some "catalyzing" effect - Issacson never really dived into that aspect of Job's personality - it might be his negotiating skill (which was epic), or his reality distortion field (which I think even Jobs fell under the influence of) - but from the very start of Apple, he just believed in a series of realities, and did whatever he could to change things so they came true.

Now, he didn't always win (most memorably in his ejection from Apple by the board), and sometimes this egomania had catastrophic effects - from his personal life, and most likely to his own health, where he refused to accept other people's opinion of what the best course of action was. You can argue and shape some people minds, but ultimately you can't win an argument with nature.

It may very well have been the case, that without the bad, there could never have been the good - they were inexorably linked.