Both of the Big Superstitions, religion and government, have shared in the guilt. Sure there have been cruel freelance torturers, but their offenses have been a drop in the bucket, barely even measurable, compared to the vast scale of the cruelty committed by goons trying to enforce adherence to the notions of The State or religion.
I think it is because a substantial percentage of people really, deep down, know better. They see through the scam, so obedience and the appearance of agreement must be enforced in both cases. Either through torture or the threat of torture.
Of course, in both cases there are also "True Believers" who will continue to believe what they want to believe no matter how overpowering the preponderance of evidence may be.
From these ranks come the ones who cheer on the torturers and try to prevent the truth from having an impact. These are the useful idiots.
There are also some "True Believers" who don't contribute to the evil, but too few of these actively oppose it. By their silence they betray humanity.
There are also a few, very few, who remain "True Believers" while supporting the right of others to disagree with their superstition, and who openly oppose inquisitions and torture. These are the good, though still deluded, "True Believers".