Obviously you feel strongly about this , however I disagree. As for a correctional purpose, I dont believe any criminal gets correction. They get imprisonment. Why should it matter where they are imprisoned as long as they are kept off the streets. I could perhaps see your point if white collar criminals were involved or in situations where the family coming to see the prisoner might help in some way to keep this person from going back to prison, but in the majority of incidences these people have long records and deserve no such attention. lock them up and ship them off. If they do at some time in the future decide to act like Human beings then treat them as such.
Some cand be and are corrected. It can take a tremendous amount of effort. I have watched certain people go to jail get a wrist slap on the judge then right back out into society to commit yet another stupid crime. The they go in for a while the corrections officers get them straightened out and they become productive members of society. Imprisonment is a punishment, but for any prisoner we intend to return to society (those who do not have life w/o possibility of parole or who have a death sentence) we must at least try to make it so they will not end up in the system again.
I'm against a private entity profiting from the incarcaration of these individuals. It is always a mistake to treat a person as if he were a commodity.