The Meatfucker - a huge dilemma in The Culture universe (spoilers)

In Excession, we're presented with a ship called the Grey Area, otherwise known as The Meatfucker by its less approving peers. It's a ship who's known for outright torturing those who have tortured others in the past. Apparently as some way of doing justice by its own hands, since its interior is filled with expositions of torture objects and what not, by which one can clearly see the ship's obsession with the topic.

Why do I find this ship so interesting? Because I would say it's pretty much the only ship or Mind that we're ever presented with who's definitely not aligned with The Culture's values, or even any set of values that most of us would consider good. After all, I don't think that many people would consider it a good thing to torture those who have tortured someone as punishment. Most for us find torture so horrible that we don't even find it correct using it to punish those who have committed it, and this is shown by the fact that most liberal countries (in my opinion the most morally enlightened) never use torture as punishment (officially at least), no matter how hideous the crime. It's just inhumane. And a society as advanced and as altruistic as The Culture, in both points much more so than any current society on Earth, would only agree with this to an even larger degree.

But The Meatfucker clearly disagrees. It seems to find it fair to punish torturers with torture, or maybe it just has a sickly obsession with it somehow - which would make it even much more misaligned with its peers. Although its good (if distant) behavior towards everyone else would make us think it's more the former option.

So, if perhaps we were shown more of its story (we're only shown a tiny bit in Excession), it's interesting to think about what The Culture would do about it. Would they just leave it be forever, left to torture how many more thousands/millions it wishes for another few thousand years until it decides to sublime? Because I think that would be way too much of a moral cost to a society with such altruistic values. So I myself am pretty convinced that, sooner or later, the Meatfucker would get fucked by its peers. But not as in getting tortured. Just killed or imprisoned.

(Again, this is pretty interesting since I think in the whole series we never see a Culture Mind getting "arrested" for its crimes, except for a brief event also in Excession where one Mind uses its effectors to interrogate the other. And of course neither do we see any other Mind decisively misaligned with The Culture's values, which in plain language just means a bad guy.)