Ben tells Locke why he killed him, Locke to help Ben be judged

We see Ben in the Hydra Station office rummaging through the desk. He finds a picture of he and Alex and takes it from the frame. Locke walks in at that moment and asks what he has there. Ben says that it's just something sentimental. Locke moves around the desk and says "I never pictured you leading your people from behind a desk. It seems a little, corporate." Locke sits at the desk, leans back and puts his foot up confidently. Ben asks him if there's something that he needed. Locke tells him he wants to talk about "The elephant in the room." Ben says he assumes that means the fact that he killed him. Ben says that killing Locke was the only way to get him back to the island along with as many of the others as possible. Ben reminds Locke that he failed to get the others to come back. Ben continues saying that the only way to get them back was for Locke to die and that Locke realized this which is why he was about to kill himself. Locke asks hBenim why he stopped him if all he had to do was die. Ben says that Locke had critical information that he need and once he had it, it was just easier to kill him rather than convince him to hang himself again. Ben says "Look at you John, I was write." He says that Locke and the others are back though he doesn't know where they are yet. Ben says he did it all because "It was in the best interest of the island." Locke says "I was just hoping for an apology. Locke then says that he's decided to help Ben be judged. Locke says that if everything Ben has done has been in the best interest of the island, then I'm sure the monster will understand." Locke pauses, then says "Let's go."

So after death, John Locke seems to have finally found his confidence. He's got his jacket on, he looks professional and he's calling the shots. He's not letting Ben push him around anymore. Ben is obvsiously uncomfortable with this power shift.