I'm Going to Put the Guild in the Ubliet, Right?

There is a little bit like you say of Cevarian enjoying his position. So the reason he summoned Roche is to ask Roche to go get him a torturer's uniform in order to so he can disguise himself. He visualizes this problem, right, that I can't just say to them, go forth and torture no more. They won't believe that they're doing the right thing. And they'll have principled stances against it just like Palamon had.