people give Jobs and Gates a lot of credit because they focused on commercial products that were marketed to the public -- Linus, for me, is probably the single most important person to technology (software) in the last 35 years. With Linux and Git alone, it as impactful and game changing in this industry that I can think of. I cannot think of any person that's been this important to my career and my income.
I’m not detracting from Linus at all but it’s just a kernel - I think one of the BSD’s would have filled the void
In 1991 there were already five or so. Plus other 'cheap' Unixes like Xenix and the usual big names.
If Linux didn't happen we'd have a few thousand BSD variants by now.
The great thing about Linus was the combination of technical brilliance and his forceful personality.