Actually I do think the Hegemony probably internally has wrestled many times with their system that even its proponents seem to see problems with (the possible exception of the Theruges we fight themselves). Their problem is the society is founded on dehumanizing the helots and any attempt to reverse that makes one question the whole thing. In the calculation of those in power the dangers external to the Hegemony are far more horrific and justify the ones going on inside of it. Hopefully that calculus is in err but ultimately the equation requires therugy in some quantity to sum to something greater than zero.