After this episode i'm a little confused. If we are to believe that Jacob represents Good and MIB evil. I'm not sure about any of that by the way
. Why would Jacob ever enlist Ben in the first place, why would Richard follow Ben so blindly and faithfully for as long as he did? Ben did a lot of evil shit, and not always for the good of the island, (killing Locke, revenge on Widmore,) it just seemed like he was more power hungry and wanted to be the man, more then he wanted to protect the island. Remember in earlier seasons every one seemed terrified of Jacob, I remember Ben didn't even want to enter the house that supposededly Jacob lived because he was so afraid? If he is the embodiement of Goodness why were they so afraid of him?
There were plenty of references to MIB as the devil during this last episode and it just seems too easy to go along with that thinking.
On another note what does Widmore have to do with the island, is he a representative for Jacob? Or is he in it for his own personal gain because he knows what magic the island represents? Why would MIB care to kill Widmore? If Widmore just wants the island why would MIB care, doesn't he just want to get the fuck off the island anyway?
The more questions this show answers the more questions I seem to have?