@wayne,
Quote: someone such as Nicky Cruz?
I do not know the man personally but a good guess would be he saw that having people hand you tax free money is a better life and a longer life then leading a gang.
That along with likely government grants to do social work.
The government could begin a prison bible college and staff it from just the Christian evangelist ministers that press their luck too far and ended up behind bars.
A third rate 1950s science fiction author went one better and became a millionaire by creating a whole cult/religion. When the IRS got on his tail he have members getting jobs with them in order to do counter intelligent.