I have been trying to determine the smoke monster's criteria. It's not as simple as good and bad and it's not as simple as Jacob's people versus Flocke's people. As an example, Ben - self proclaimed follower of Jacob (and, indeed, leader of Jacob's people, as far as we know) calls on Smokie to round up Keamy's people. Although he does state he can't control the monster, he can still call it and, of course, we have all the CV notations on the blast door, indicating that perhaps the Dharma people had some sort of similar relationship with the Smoke Monster.
Presuming that MIB/Flocke, IS the Smoke Monster. If Jacob and MIB are true enemies, or even opposite sides of the same coin, why would Smokie help the Others?