There is one pattern of thought that i think is missed by this experiment, but another one could just as well measure it too and i hope someone decides to: it's easier to order people to do what you think is right than it is to convince them that you are right. I think under circumstances where a person feels frustrated that their point of view isn't being validated by others they will have a greater tendency towards authoritarian power as opposed to autonomous power.
Certainly, how many of us have gone through the phase of growing up where we think that if everyone just listened to us and did what we said, everyone would be better off? I think well intentioned paternalism is a greater cause for authoritarian desires than narcissism and ego validation.