The milieu in which Apple came to fruitition was full of young small microcomputer shops. So it's not like Woz invented the microcomputer for the masses - his contribution was critical for early Apple for sure, but the market had tons of alternatives as well. Without Apple II it's hard to say were Jobs and Wozniak would have turned out. Jobs is such a unique, driven figure that I'm fairly sure he would have created a lasting impression on the market even without Woz. This is not to say Woz was insighnificant - but rather the 1970's Silicon Valley had tons of people with Woz's acumen (not to disparage their achievements) but only few tech luminaries who obviously were not one trick ponies but managed to build their industrial legacy over decades.