So I try to put myself in Wik's shoes by imagining something different niche where I'd be less than thrilled if the players took control. I guess I'd be put off if the players had game-provided abilities where they decided that my villain's main henchman was actually an undercover spy working for the party (or vice versa). Or less extreme, you rolled for treasure, and if you succeeded, it was there. (The indy game Donjon has never appealed, at all.) I'm not even that set on having control, but I do want something there before the roll happens.