Just a random thought: We have no real understanding of what it is like to be a prison worker. At first, they are gung ho and abide by the do's and don'ts of interacting with the inmates. Eventually, even the baddest of the bad inmate will show some kindness, some type of humanity, and it's normal to feel sorry for them. A lot of us have been raised to forgive trespassers, etc. This is true of the prison guards and co's. You can see where a lot of these co's just behave like they have a heart, which is desirable in a human! I think most inmates are grateful for being treated like a real person, rather than an animal in a cage. The M and S types take advantage of the goodness of others.