I care because there's no reason at all to believe that you won't do something worse like hurting people, and when something severe happens Acumen-san tends to punish everyone in the prison for it. I don't want innocent people getting blamed for what you're doing.
Everything matters to me. I want to be able to tell people that it's safe and good here. I can't do that when selfish idiots like you insist on making everyone afraid.