To be fair, Woz wasn't just a “friendly selfless genius inventor engineer”, he was also the co-founder of one of the most valuable tech companies in the world. And YC is, in their own words: "The Y combinator is one of the coolest ideas in computer science. It's also a metaphor for what we do. It's a program that runs programs; we're a company that helps start companies.". They're not entirely unrelated.
He wasn't entirely unworldly though. He didn't like BASIC as a language, but he gave the Apple I and II a BASIC capable of running the programs from Ahl's BASIC Computer Games because that's what the market was demanding.
