You're right. Unfortunately, the current culture is "more, more, more", even when it's Comcast, which must be like squeezing blood from a stone at this point (what growth potential is there with an ISP of their size?)

If the board doesn't take action to raise profits, the shareholders will remove uncooperative executives and replace them with those who will. So it might not be de jure in their corporate charter, but that's the reality.