I don't think they have "enemies" in Bethel, I just think some Bethelites spill info when they shouldn't so they receive credit like they are in the know...boosting their own egos.
If anyone in Bethel gets TTATT there is no way in hell they could live that fake life just to be a spy in the ranks, doing that can cause lots of mental issues.
The GB are full in on their beliefs and whilst not every Bethelite is uberzealous I don't believe there are many who are still there if any who are "mentally out".