See, I don't think that. I think they are power hungry, sure. But I don't think they ever realized the power that their product would grant them. It's totally unprecedented. They get right into our brain and tickle our dopamine receptors while they mess with everything else.
I don't think they expected or were prepared to yield that type of power, at all. I really feel like Zuck et al accidentally stumbled into being a supervillain. Like some sick Mr. Bean skit.