I don't think people in power see the corporate press as anything other than a tool. They know the game. However, there are many people who still care about those outlets, because the "respectable people" tell them to: I refer to that as "The Cult of Respectability".
As far as independent media still focusing the depravities of the corporate press, I think it's partly habit and partly what got them prominence in the first place. It's also entertaining.
In order to really kill the corporate press, we need to follow independent reporting and stop following reporting on corrupt regime reporting that has no audience.