I'm not convinced that MIB is the bad guy anymore and Jacob is good. We were absolutely lead to believe this, but it simply could not be the case. Further, black and white don't necessarily indicate good and evil. They could just mean Jacob and MIB are complete opposites. Jacob loves and wants to protect the island, while MIB wants desperately to leave. Despite the fact that Jacob and MIB are competing in a game against each other, that doesn't make one evil and one good. Just a thought.