I would argue that there are plenty of better, and less publicised, examples of people who are passionate about their work than Steve Jobs.
These are qualities you usually find in the arts. I've worked with and around writers and directors for most of my career, and I've seen "Steve Jobs" in a lot of the more successful ones. Consider the example of Stanley Kubrick, or, more recently, David O. Russell. Now, go watch the infamous David O. Russell temper tantrum video on YouTube. You could just about substitute Steve Jobs for David in that video and believe it.
Art is a slog. Artists are the ones with enough endurance to churn out shit day after day, refining the best of what they produce. The best artists are social, because that's where the most ideas flow freely.
Most artists I know (writers, musicians, graphic artists) are like this. Perpetuating the myth of the great lone genius is elitist, which is a discriminatory and dangerous ideology.
"The best artists are social, because that's where the most ideas flow freely."
Strongly disagree with this statement. History abounds with brilliant artists who were socially well adjusted and socially oriented. But it provides just as many examples, if not more, of artists who were introverted to the point of isolation, or who lived tempestuous social lives, or who wrestled with crippling mental illness (there is a shockingly highly incidence of bipolar disorder among history's great novelists, in particular).
I don't think one can make a categorical declarative about the personality types of "most artists," or "the best artists." There is too much variance within the set, and there are too many variables to consider. And "best" is a subjective minefield in its own right.
Anyway, that's the kind of world I'd like to live in. Everyone can (and should) be an artist to some degree. While I do agree with the fairly obvious point that some people are more talented than others, I reject the idea that there are "genius artists", spikes of talent on an otherwise smooth talent-graph.
Keep imagining. But great ones aren't. Go read:
Touched with Fire: Manic-Depressive Illness and the Artistic Temperament by Kay Redfield Jamison http://www.amazon.com/Touched-With-Fire-ebook/dp/B001D1YCM2
The Outsider by Colin Wilson http://www.amazon.com/The-Outsider-Colin-Wilson/dp/087477206...
The Price of Greatness: Resolving the Creativity and Madness Controversy by Arnold M. Ludwig http://www.amazon.com/The-Price-Greatness-Creativity-Controv...
EDIT to add: Why Jobs stood out is because the closest equivalent to what he was is a film director. But business is not set up to hand out accolades like Hollywood does. So instead of everyone learning who did what in Apple -- as with film we find out about sound editors, foley artists, etc, etc. -- we just get the face of Jobs.