Our rights, our justice system, and democracy depends on the concept that we have free will. This extends all the way to those of us who spurn convention to live an off-beat life. Our constitution (US), charter of rights (Canada), do not enshrine convention, they enshrine freedom. Assumed is that our intentions cannot be subverted, and that our intelligence is autonomous and our own.
Want to live freehold, subsistence, in a dirt-floored shack you built yourself? ( Thoreau, Walden ) Go for it.
Gonna live commune-style with a bunch of hippies and share the raising of your children? (The Farm) Knock yourselves out.
The idea that we can be influenced against our will shakes the foundation of these very institutions. Yet there are many who believe that this is indeed how governments are made. We are polled, studied and tracked perhaps more than any previous generation. My Google and Amazon are better predictors of my tastes than my own family. Commercials appeal to our basest instincts in their hopes to sway us to one product over another. Puppies, kittens, and small children dominate (My Dad is an Alien). There's appeal to fear, too. (George W Bush - Wolves at the door). If elections are rigged and people as a whole successfully manipulated, why even bother to vote, to support a democracy?
As I said, these institutions depend on the concept of an intelligent populace, free to make their own decisions.
So where do high-control groups come in to this? At what point is a person's freedom to choose overriden? Does the same coercive techniques work on everyone? If we are so easily manipulated, must we revisit the foundation of our institutions? Must we be protected from ourselves?
If so, who would be the arbiter of good association over bad? Would our society end up being constrained by convention rather than by freedom?
Keep this in mind when our governments and justice system use caution when legislating against high-control groups. There's a fundamental question at work here about our freedom to choose, about our mind's ability to make informed choices.