The power grab happened a while ago (the shenanigans concerning the board) and is now complete. Care for humanity was just marketing or a cute thought at best.
Maybe humanity will survive life long enough that a company "caring about humanity" becomes possible, I'm not saying it's not worth trying or aspiring to such ideals, but everyone should be extremely surprised if any organization managed to resist such amounts of money to maintain any goal or ideal whatever...
One could argue it would mean pampering it.
One could also argue it could be a Skynet—analog doing the equivalent of a God Emperor like Golden Path to ensure humanity is never going to be dumb enough to allow an AGI the power to do that again.
Assuming humanity survives the second one, it has a lot higher chance of actually benefiting humanity long term too.
http://omniorthogonal.blogspot.com/2013/02/hostile-ai-youre-...