I've yet to hear a story where Jobs was the one who discovered the fix, only stories that he pointed out the things that needed to be fixed.
He's lauded as a visionary, not as an engineer. And all the stories about him are about him pushing others to realize his vision.
Edit: Lots of people seem to disagree with me, but then pointing out how he was an extremely skilled ideas man. Perhaps that term has too much negative connotation for Jobs' visions (ideas) to be associated with?