[draugadrotten]

Indeed many of the victims and their relatives would say that these criminals should be kept locked up, for the protection of others and the betterment of the world. A punishments primary purpose is not to produce socially great people, the punishment is meant to, you know, punish as well as be fair, and protect others.

[Fnoord]

The intend is quite clear.

The problem is that this makes rehabilitation more difficult which in turn leads to recidive.

Back in the 90s (when I looked into this cause it was part of political standpoints by politicians in my country) both the general public and behavioural science was on the fence whether longer punishments or shorter punishments with a focus on rehabilitation worked better. A quick search on DDG showed news articles and studies arguing both ways.

[rhizome]

Indeed many of the victims and their relatives would say that these criminals should be kept locked up, for the protection of others and the betterment of the world

Which is why they aren't the ones who decide sentencing.