The technology Jobs believed in and developed at NeXT really did dominate the industry. It's in the phone I'm typing this on right now.
I think Linux on the desktop would have been a better example though. Millions of hours of dev time have been spent on it and it's no closer to providing any competition to Apple or Microsoft now than it did in the 90s. I think there was a complacency in the Linux desktop world that success was inevitable given enough effort. I don't think Musk has ever been complacent about the success of his businesses. I don't think Jobs was either.