If whether Charlie is punished or not is entirely up to me then if I think he deserves to be punished I will do so; if I don't I will not do so. If I have to persuade someone else to punish him, then I will try. If the legal system is doing the punishing then I will advocate for laws that agree with my morals. And so on.

And do you alone get a say (after all, you belive that what you think is right, is right) or does anybody else?

There is no objective fact about who ought to get punished or rewarded.

Exactly. My view "works" int that it can rationally justify punishment and reward.