Hard to convey to you guys how much you have actually got the whole thing in a nutshell.
...except for a couple of (important) things.
a. You create an environment in which every member is completley paranoid of anyone who does not conform to "group behaviour" and encourage members
to frequently "test" each other for their loyalty.
This will mean that they will come blabbing to you on a frequent basis giving you the whereabouts and demeaners of all your subjects so you can have
forewarning of members who are about to wake up and get the hell out of dodge as well as infiltration by outsiders.
b. You need to have frequent "kick outs" that are visible and preferably cerimonial to subtly re-inforce the message that "This could be
c. It is a rotating door - everyone will wake up eventually, it's really a case of controlling the mass so that it regulates the minority.
Eventually everyone will wise up to the fact that they are just being used/abused and will look for a way out, it's important that you manage this
process in such a way that you can get a profitable length of service from them before this happens.
When they do wise up, ensure that they do so in isolation (maybe get them to move to a new area) and then subject them to section b.
I have seen this, I am one of the few who have got away and still have a voice. (...big deal huh???)