"You know, I find that argument, that if you’re not paying that somehow we can’t care about you, to be extremely glib and not at all aligned with the truth. The reality here is that if you want to build a service that helps connect everyone in the world, then there are a lot of people who can’t afford to pay. And therefore, as with a lot of media, having an advertising-supported model is the only rational model that can support building this service to reach people."
—Mark Zuckerberg, Vox interview
Of course Facebook cares about you, just like a slaughterhouse cares about the cows driven up to the ramp. If they could reach more cows, they would, even if those cows couldn't pay to drive themselves to the slaughterhouse.