My problem with advocating logic as the better system, is that logic is often not very emotionally satisfying. Like Amel, in Throne Price, I sometimes find myself more interested in a good illusion than a cruel truth. Or simply more partial to a warm-hearted misconception than a heartless application of rationality. Perhaps my value system is migrating with age. I liked the quote, mind you, because it touched on my youthful impatience with people who use their intelligence in the way you mention -- to rationalize oppressive or harmful behavior on the strength of supernatural premises or folk beliefs. That nerve is still alive, too, I guess.