The question remains whether that was all him or a combination of Wozniak and Ive, on top of being at the right place(s) at the right time(s) (iMac, iPod, iPhone).

Also he died 15 years ago, but Apple's success (measured in market cap at least) went up more than 10x since he died (from 300-400B to 3-4T), under Tim Cook. That's arguably from the groundwork and reputation the company laid down 15 years ago, but still - few companies manage to keep growing on stuff they did 15 years ago. Oil industry notwithstanding.