Would you bloody well stop taking responsibility for other people's actions? You bit one person, and that person bit another, but once they knew what they were, they willingly bit other people, and those people willingly chose to allow themselves to be bitten. And once that started, any blame was passed completely off of you. Mark knew the risks. Everyone did. It was made plain and clear what might happen if anyone fought, and they did it anyway. If I'd been bitten, it wouldn't have been your fault. It would have been the fault of the poor bastard who'd agreed to become a werewolf.
Feel bad for the people who didn't choose it. Feel bad for the ones who came by their bites accidentally, without knowing the risks. Otherwise you'll make yourself into the martyr I know some people say I'm trying to be. You're not a martyr. You're a bloody human being with a furry problem.