Yes... I think I agree... people do tend to be good (at least to those in close proximity... although, at some point you need to choose who to be "good" to and who to be "evil" to... or who to advantage/disadvantage... ).
Social injustice can definitely lead people to commit "evil" from the point of view of the affected... but from the point of view of the criminal... it is a matter of choosing survival or the good of a different grouping of people (maybe... family?).
Interesting about the Norwegian model... it does seem like a better system that prizes the original ideals of redemption rather than pure punishment.
I think a system combining elements of Norwegian and common prison would work best. There is no reason why tax payers should fund a holiday for a terrorist who killed over 20 people such as the one they have there.
No, but on the other hand a system should be built around outliers either!