OK, so your problem with punishing people is that it's not either compensatory or deterrent.
I have a problem with punishing people when it's not compensatory or a deterrent.
Here's my basic position. I think the family or estate of a victim is not necessarily relevant to the criminal punishment. That would be revenge and a criminal case is brought by the state so it doesn't really fit.
Yeah, that's kind of weird, but fundamentally our system does charge people with breaches against the order imposed by the state (or whatever).
I think criminal law is partly based on the equitable principle that if you deprive someone of liberty and break the social contract with the state, you should suffer to bring about equity in society. Equity as between the criminal and the rest of society, so that the criminal isn't benefiting from the peace of society without reciprocating. Equity as between the victim and the criminal so that the criminal has an equitable reduction in his liberty to prevent a type of quasi-unjust enrichment of liberty.
I understand what you're saying, but that seems to basically be the a legalistic paraphrase of the same moral claim I'm objecting to. Yeah, I get that people feel that justice has been violated and the way of "restoring the balance" is by inflicting suffering on the person responsible. I think it ties into the instinctual human hatred of inequity. Except, in this case, the way of fulfilling the desire for inequity is the
state executing someone. Very occasionally, that person didn't even commit the crime. This is not some sort of bland, procedural thing. This isn't restitution. This isn't based on some straightforward moral principle. It's having the state kill people because it satisfies a very instinctual sense of "justice" that we can't really explain coherently. How comfortable are you with that?