“You’re not going to persuade a conservative by appealing to liberal moral principles. Tell a Tea Party type that industrial waste harms the environment and should be regulated, you won’t get very far. But if you appeal to conservative moral principles, the story goes, you might have more luck.
I’ve been skeptical about Jonathan Haidt’s conservative moral principles — group loyalty, purity, and authority — mostly because they are used to justify practices I find wrong or immoral. Things like anti-gay legislation, torture, assassination, terrorism, etc.”