Sounded to me as if Greyback's getting something out of it. Working for Voldemort, I mean.

And the way Travers and Braithewaite were talking, the werewolves get off on hunting people down. Sorry, Remus. They weren't exactly... They don't have a very high opinion of Greyback and his lot, except as really useful tools for terrorising folks. That's how it sounded. So they didn't make it sound like it was tough to talk a werewolfthese werewolves into doing what they're having them do.