Imprinting is brainwashing. It's not a deflection. Sorry you see it that way. The Church uses the Purif as a method of breaking down imprints and leaving you in a state to receive new ones. You are made extremely vulnerable, your diet is controlled, and you are "on the purif" for an arbitrary period, until such time as the C/S ("Daddy") says you are done, which is a complete mystery to most people on the purif. I'm sure most people are quite relieved when their purif is complete.