Now this is hearsay of an experiment done on ex-prisoners who became xtians that were tracked for many yrs --- not 3 or 5 but something like 20+ yrs. and didn't end up back in the slammer. I couldn't believe!
King Sol -- attys. and crim. lawyers would agree w/you about them being saved and seeing the light inside -- they chuckle at that one. I've only known 2 people who were in jail (fortunately), an ex hairdresser and a domestic worker (housekeeping) who became professed xtians and one of them was staging/playacting and the other may have cleaned up alittle. I guess it's a big crap shoot.
If we are born with a moral compass why such evil --- because of the strong animal traits we possess as humans, I'm assuming and the compass is weak -- no, wait, that's the flesh.
I'm not saying many haven't been changed by following Christ's wisdom but there are certainly some bad pew potatoes out there but maybe they're trying and change takes time/difficult.