Nay, nay, a thousand times nay. Dukat's essence is that he's a selfish egotist who temporarily wins through his aggressive, risk-taking and audacious nature but ultimately succumbs to self-defeating hubris. This persona is possible only as long as he's in control of his actions. Turn him into a pagh-wraith puppet, and he becomes a bore. Any character would be a bore if that happened to him.