Agree that rationality evangelism (edit:) might be overrated, the importance is spreading the Friendliness-might-be-important memes far and apparently SingInst is using "rationality" as one of their memetic weapons of choice. I personally am not suggesting this memetic strategy is a well-thought-out one. "Aversion to lost purposes" totally doesn't at all mean getting distressed because this world isn't the should world, it means the thing that Eliezer talks about in his post "Lost Purposes".