Don2 (Don1 Revised)
Contributor
Some atheists pretend to be Christians.
Well, let's suppose that this is a significant factor in the numbers. We've discussed how there is pressure in prison and unfair discrimination by parole boards, and even risk of physical harm to atheists so that an atheist might want to be appear religious. Is there some additional reason that you are hypothesizing beyond what is established?
eg. atheists masquerading as clergy.
clergyproject dot org
That appears to be a derail. The vast majority of people in prison are not clergy.