Does Finland really know what's up?

I watched this TEDtalk about prison reform (https://www.youtube.com/watch?v=j8I749MuYbA) and the speaker, Jennifer Thomas, spoke about her time in jail and the amount amount of injustices she witnessed in just four months. She then compared the US prison system to Finland's and found completely different approaches we just so happen to be familiar with, retribution and rehabilitation. After watching this, I was curious and looked up the crime rate for both countries, and as expected, in 2002, 11.88 million crimes were reported in the US while Finland only had 520,194 reported. 

Here's what surprised me. Taking population into account, the US only has 41.29 crimes reported per capita, and Finland had a whopping 100.03 crimes reported, ranking in at #6 out of the 81 countries listed. So based on this evidence, is rehabilitation really the answer, or is it too good to be true? 

Furthermore, the country ranked last (smallest crime per 1000) was Nepal (0.368 per capita). Sanjeeb Regmi, spokesperson for the Office of the Attorney General, stated that prisoners in certain districts of Nepal live under "inhumane conditions". Keeping that in mind, the country ranked first is Iceland (209.52 per capita). Iceland cells don't have locks, and all inmates have relationships with the officers. 

So now I'm confused. My morals are telling me rehabilitation, but the numbers are telling me retribution, so what do you guys think?

Iceland article:http://theconversation.com/i-deliberately-sent-myself-to-prison-in-iceland-they-didnt-even-lock-the-cell-doors-there-105257

Nepal article:https://www.msn.com/en-xl/asia/nepal/prisoners-in-nepal-are-living-under-inhumane-conditions-says-office-of-the-attorney-general/ar-AABogmW