So I think it is pretty widely acknowledged that his influence goes far beyond figuring out how to make money. It goes far beyond merely building Apple. Microsoft copied what he did. His value judgment about what was important (with regards to typography) has thus basically influenced 'all' computers. What I don't think I have ever seen anyone explicitly say is that without his insistence on good typography, it's possible computers would have never been popularized to the degree they have been. That's the kind of thing that mere self discipline doesn't fully explain. I think that's the kind of thing which falls in the "mystique" category.
Peace and have a good day.