If you make a feelgood film which is complete candyfloss, where everybody is good and everything is beautiful and hunky dory, it won't appeal to the audience.
I like making sci-fi movies because I like watching sci-fi movies. I like watching horror. I like being in a horror movie. I'm a fan. My perspective's a little different just because I get to participate as well as spectate.
All people, even secular people, are seeing books on the market like The End of History.