Ah, then you mistake me. See, Jacob is going to find some meaning of self sacrifice where he is going to turn on Michael when it matters. I know TGP is on its knees (well below that). I don't plan on having Jacob die either, but the charade of him posing as Black Alpha is going to eat him alive. Besides, I set up Michael as an arrogant fool who wouldn't use the device to kill Jacob when he would rather prove that he is stronger than Jacob. His abduction years ago, putting up with a split personality, the failed moon transport, Tranq's death, Jacob is at the boiling point of feeling defenseless. Eventually, he needs to crack and that moment may not happen until after he arrives at the island. Right now, the only thing he can do is help locate the base, so he can regroup with TGP.