There's certainly a lot of truth here. However, Mark Zuckerberg built the company to last. So I think it's unlikely that it will completely be marginalized.

Regarding the Zuck = Jobs. Absolutely not. Yes, they are both product people. But Mark Zuckerberg does not have the same aura or doesn't necessarily have the same depth of intellectuality that Jobs (college dropout or not) had. When I see Mark Zuckerberg, I think more of the Bill Gates or our time than an artistic genius with deep root in counter-culture lifestyle.