Gammas do have a tendency to forcefully abide by their value systems, which can come off as self-righteous and morally stiff to other quadras. The same way Betas can forcefully abide by their own
ideological systems. Gammas are quite capable of being very judgmental about other people's values .
I don't see why this is so controversial. If it's accepted that Beta's can be rigid in their beliefs, why isn't it accepted in Gamma's? Both are
quadras.
Obviously the extent to which any of this is true will depend on the person should be taken into consideration along with other criteria when typing, but if you don't find even a hint of it, you should probably consider other possibilities as well.