N.K uses Mind Control, as do all Cults, as do the J.W org , it is the most effective form of control to use on large numbers of people.
As Cofty rightly says, the J.W org and similar cults, are very close to the totalitarian regimes that we have been appalled by over the years. Using Mind Control to enforce strict Authoritarianism.
"Totalitarian" and " Authoritarian" are almost synonyms, but the merely Authoritarian State is more open to reform. The totalitarian State (or cult/religion) tries, and often succeeds, Vampire like, to change the mind and very soul of the person. Therefore the J.W org is totalitarian.