My impression is that when people talk about Zuckerberg, they usually refer to his portrait as a lovable geeky nerd in the movie.

But in reality, you should probably imagine someone with a psychology degree who's a master at pulling strings in the shadows and who just happens to like technology among other things.

I can't find the quote now, but I believe there were several articles about how he was widely disliked at Havard for his FaceMash website. Many people didn't appreciate being part of his psychology experiment ^_^

Also, there was a lot of discussion back in the day because the first Facebook beta looked very similar to a software he was supposed to build as work for hire for a 3rd party. I'd call that a rather opportunistic move.

So I wouldn't be surprised if your thought experiment would end with Zuck just saying "ooh that's sad but I don't care" and not explaining anything.