He was a real life example of the Lawful Stupid alignment.
I feel sorry for him to some extent, because he was his own worst enemy in the causes he cared about. It is undoubted that the turned more people away from his beliefs than he ever persuaded. I can't think of any worse emissaries for Christ with the possible exception of the monks that oversee the Church of the Holy Sepulcher in Jerusalem, because unlike some notorious hate mongers he actually seemed like he might really believe in what he's doing. Regardless of how vilely he portrayed something, he always wanted to redeem people and thought they could change. That is to say, he really seemed to think he was helping save people from hell. Problem was, he never seemed to notice just how his vile portrayal, conspiracy theories, and borderline insane paranoia made him at best a figure of comic fun, and completely revolting to the people he thought he was helping.
He treated everyone and everything alike; it's just that he feared everything alike. He never quite seemed to get that whole "Fear Not" thing. It's little wonder he feared D&D because he thought he lived in a world were pretty much everything in D&D was real, and he was in his mind a Paladin with a pen fighting back the monsters and their cultist servants. That he was a rather skilled inker just made it worse. But there is a fundamental problem with his work. If you hired him, it would be to illustrate a book of vile darkness, not a book of righteousness. He did ugly a lot better than he did beauty, and he did ugly a lot more often than he did beauty. He seemed to have no idea what the word edifying means, despite the fact that he spent his whole life trying to do it. As the harshest example, his obsession with the works of the devil and the power of evil often leapt right into the giving power and glory to Satan territory, with the consequence I've heard more people suggest that they got into Satanism after reading his tracts than those that decided Christianity was for them.
Which suggests that perhaps he wasn't serving who he thought he was. Imagine you believed in something with such zeal you devoted your life to it, only to discover that all your work had been not only wasted effort, but actually harmful to what you believed in. You came to reap the harvest, only to find that you'd been sowing weeds the whole time. Sad.
