Disappointed

I'm sorry I just have to say this, this was a funny drama, with good acting, but I'm extremely disappointed ... (there might be spoilers bellow)

How can we talk about attempted rape without a mention of psychological aftermath of the victim?

How can we talk about murderers being rehabilated without them showing any remorse regarding the act of murder itself?

How can we talk about criminals without a mention of morality?

What message is this drama trying to convey? That as long as one is successful it's ok to have anger issues? That there is no need for moral rehabilitation?  That it's ok to use violence and attempt to kill anyone who is in your way? That if you, as one person, judge that someone is bad, it's ok to use violence to try and kill them? That it's ok to try and kill someone if they are a threat to your wealth or your fame??

As audience, are we ok with lack of morality? are we ok with just focusing on the good, and forgetting the crimes they've committed? the lives they've destroyed? and the pain they've caused?

I agree with Regent. The drama's not about the victims - not the ones harmed by the convicts of wing 2, anyway.

Because, if you watch at the whole thing from a slightly different perspective, some of these convicts are victims themselves. Some have been betrayed, some are there despite being innocent, some are there for trivial crimes - come on, stealing a van with bread? What about the morals of those who are outside prison? 

In this sense, the drama has not forgotten morality - or better ethics - at all. Where's the morality of a large company who puts all the blame of its wrongdoings on a loyal man? Where's the morality of a senator's son who bullies and kills a comrade and then gets someone else be arrested instead? Where's the morality of an employer who underpays his workers and doesn't even insurance them? Who's worse, the con artist behind bars, or the warden who steals their little money abusing his power?

I seem to understand you're especially referring to the main character Je Hyuk when you say he doesn't show any remorse.  He ran after a potential rapist and during the ensuing scuffle hit him too hard. I don't think any brother would have so many regrets after basically defending their younger sister. Perhaps that's because I find rape the vilest crime out there, but I'm not sure I'd have so many remorses myself in a similar situation.

I think this show was a pretty good representation of how prisons are based on my research. While studying architecture, my thesis topic was Juvenile Detention Center. For that, I did research on both, Juvies and Prisons. 

So basically, most crimes are circumstantial, not intentional. That means not all criminals are psychopaths out for everyone's blood. Murder and sexual offenses are the worst types, but murder can be circumstantial, mistake, or self-defense, whereas sexual crimes are always intentional. After that other crimes are of lower degree and may not always mean the person involved is evil or have no moral code.

As for the fun part, prisons get to interact a lot in jails, only difference being, they are in general separated by the severity of the crime to reduce conflicts. Most prisons will form or join a  group to survive in case things go sideways. They get to learn new skills and even get proper education including diplomas, PG, and master's.

What was lacking? 

1. They should have shown counselling sessions. Most prisons have one on one counselling sessions with a professional to improve their mental health, help them cope with life inside, and prepare for the outer world before they are released. 

2. Lack of sensitivity towards drug addiction. When a person goes in for drug possession, if they are addicted, they are moved to rehab first instead of putting them in a normal prison. 

3. Freedom to move out and about whenever they felt like it. While jails are interactive, they still have set time to let prisons out of their cells. Most of the time, they are not allowed to get out of their cells after sunset.

Lastly, I want to say Je Hyuk's control over the prison guards and employees but even I know that celebrities, politicians, and popular people have a lot more sway in prison. So, it was like accepting a bitter truth.