You never hear about the thousands (millions?) that took similar level of risk and didn't make it. Actually billionaire stories are almost typical example of reckless behaviour. There is a bit a cognitive dissonance in society to strongly reject billionaire behaviour except when it all works out and your behaviour become instead aspirational stories to be emulated.
Few gamers of today recall VooDoo or SGI, for instance. And most consumers have no idea what a Tandy is (was?).
Apple made him the youngest tech multi-millionaire. Pixar a billionaire. Apple, again, where he built the world's most valuable company and insane profits.
More n than most billionaires, no? Only Buffet has a real n>5.
Key is he was not a one-trick pony. Real data to prove it.
Right now I'd put Bezos in that category with an n=2 (ecommerce, AWS).
To show a counterexample, Brin/Page have an n=1 - ads. Rest is cool tech, but not significant business and yes, I am adding Youtube into the ads business idea.
Same with Zuckerberg, both Instagram and WhatsApp were about adding eyeballs to the same business model - super ideas, but additive. If Facebook Workplace takes off as a paid-for business, he will have n=2.
Does PayPal count? How much relied on the others? I don't know.
Tesla, Solarcity and SpaceX are all on the verge, but not quite there yet.
5 years from now he either has a n=3+ or is known as a massive flameout. but yeah, good shot at being a SJ 2.0.
I'm not a big fan, but calling Steve Jobs a one-trick-pony with one good call is inaccurate.
In the case of Steve Jobs, that takes a lot of good luck. Good luck repeated reliably over the course of his life.
It's funny how good luck falls more on people often who work hard...
There were at least a million other people who started in about the same situation, and worked just as hard, and made similarly risky calls. They didn't get heads all the way, and now you're not reading their autobiography or talking about them on HN.
Don't discard your priors.
It would seem Apple had several low level failures (Lisa, iMac mouse, G4 cube), but his big bets (iTunes, iPad, iPhone) always seemed to pay off.
"Chance favors only the prepared mind." Louis Pasteur