Creating a class of prison slaves who have no right to vote with no possibility of upward mobility is a feature, not a bug. Add to that the difficulty of obtaining affordable healthcare/tying it to a job, gutting education, making child labor legal, making abortion illegal, etc., etc., and that plan becomes pretty obvious.
I guarantee the three-toothed meth-head knows more about assembling and running a carnival ride than submarine dude knows about his best buy remote control.