I believe that the world's major religions increase their number through proselytization (IIRC, Judaism does not, but the rest do). How is that anything but changing minds through moral example? Or do you want to argue that Jesus never changed anyone's mind without political lobbying?
Ah, excellent point, Teach. Proceed with tutoring. Oh, yes, I forgot, classroom teachers never use moral arguments in classrooms (say, a social science instructor spouting anti-war doctrines), do they? Of course, they never change any young impressionable minds in imposed environmental science lectures, do they?