I agree about the unrepresentative sample. It would be interesting to try teaching OB in a small class-sized four-credit college seminar, with a follow-up a year later, to see if the material can be presented so as to have impact on ordinary university students, or on ordinary students at a selective university. Probably worthwhile as an experiment, after we do some more basic research seeing if we can detect this "rationality" thing in a survey or something of the OB readership (so we'd know what to test for).

But even given that OB is starting with all or mostly rationalist wannabes, I'm surprised at the impact its had on my and others' thinking, relative to what happens to rationalist wannabes who don't read OB, or who aren't members of this community.