Oh, one more point - Matt went into the bathroom instead of attacking Kelly straightaway because some part of him was still human and still fighting it. You see the same thing with that original survivor of the plane and his wife and kids - he resists killing them for basically as long as he possibly can.

I don't see Dutch biting it yet. Obviously no promises since they made Kelly a horrible awful evil thing, but I suspect she has a fairly long road ahead of her, and she will, despite her obvious character flaws, have a pivotal role to play - perhaps helping put the word out on what's going down and such.