Are murders capable of learing their lesson?

The concept of the film "White Bear" was to show a world where murderers are put through the same pain that they caused their victim. Victoria Skillane was punished repeatedly for the pain and suffering she brought upon Jemima Sykes. Victoria's punishment was to have her memory erased, and to be filmed while she was confused and scared for her life. All of this was done so that Victoria would receive a cruel and harsh punishment, but what is the purpose of this merciless punishment? It is definitely not to rehabilitate her so that she can become a part of society again. The other option would be to teach her a lesson, but what lesson is being taught here if she will never be able to remember the horrible crime she committed? At some point, if the people in charge of the park continue the cycle of erasing her memory and putting her through torture over and over again then eventually Victoria's mind and body will completely shut down and she will die. Therefore, she never even truly received her punishment or lesson, because she will never remember the pain she was in through the recreation of Jemima's murder. In order for her to actually know the pain she caused Jemima, the only reason the recreation would even serve a purpose was if they did it one time and put her in prison for the rest of her life. Otherwise, the recreation of Jemima's death by torturing Victoria is pointless. The process should not even be done as a way to teach her a lesson, but only to cause her pain because someone who commits such a heinous murder is not capable of "learning their lesson" nor should they ever be allowed to be a part of society again.

Also, the effects on the people who are taking part in the reenactment is something that cannot be ignored. There were not only adults who participated in the reenactment, but children as well who are not capable of processing the complexity of the situation. The only thing the children see is a human being tortured while no one helps her and at the end everyone cheers about the pain she is put through. Therefore, children will leave the park thinking that everything that was done that day was acceptable on a daily basis, without underlying circumstances. Even the adults will not leave the park psychologically unaffected. It is possible that this could even cause their reasoning skills to be affected in the future where they may result in violence always being the first answer or they may want to put someone through this amount of emotional pain for miniscule reasons.