It's an inverted religion in a sense. The direct opposite of the female counterpart. The whole reason that Pinhead is a leader is he intones lines in the same religious detachment. Purely a tool. That's one of the things on which this movie and some of my fiction is based.
Mankind is envisaged as the real source of evil and malice.
One of the reasons Hellraiser plays is there's a sense that the maniacal forces are really just human beings doing things to each other. Here's the interesting thing. A man sent me an amazing poster of Pinhead that had travelled all around Africa.