I wasn't entirely clear. I was really just responding to the point that you couldn't target people yourself. It wasn't meant as a refutation to your point, just a clarification of one aspect of your point.

That said, since you can target specifically, if the system did allow some way to exfiltrate user data, it would make financial sense for larger analytics companies to do so to provide value-added services where they could target much more specifically than Facebook intended (or at least intended to make obvious?).