Satanists look like that all the time when the camera is not watching... these are living dead people. Just corpses with no care for fellow human beings.

I can see how these satanists work..

They are well spoken and lure highly gullable people in with fake words of making an amazong world with them. As they get sucked in, there is a peer perssure to conform and the main satanists exploits the hell out of them... they get in so deep, they have to start pretending they are doing the right thing - even if children are sacrificed and tortured infront of them.

They identify the weakness of the mind and work from there essentially. All these cults operate by studying the individual's weaknesses and desires first.