No, this Guy Pearce-starring shoot-'em-up doesn't have anything to say about correctional policy.
Perhaps the most quintessential moment of soulless genre tripe in Lockout , a movie filled wall to wall with soulless genre tripe, occurs around three quarters of the way through. Our generic heroine, Emily Warnock (Maggie Grace) has been captured by the desperate, sweaty, and generic escaped prisoners of MS-1, a maximum security prison in orbit around a near future earth. The generic loose-cannon/sex-offender/very-very-bad villain with very-very-bad teeth has been amusing himself killing generic hostages, forcing Emily to emote, which is painful for everyone. But despite that, the generic grizzled head bad guy rallies, and shoves a phone at Emily, demanding that she talk to her father who is (surprise!) the (generic) President of the United States. Emily is supposed to tell her dad to call off the assault on MS-1...but instead she screws up her face and bravely announces, "Everyone's dead here." Then, looking the baddies full in the face, she tells the muckety-muck of the free world to reduce MS-1 to ash.
So...did you catch that quintessential moment of genre soullessness?
There's a kind of purity to the film's amorality, a blank and drooling truthiness.
Well, I won't keep you in suspense any longer. It's that line, "Everyone's dead here," which actually means not that all human beings on the station have been killed -- because Emily's looking at a roomful of human beings with guns on her, after all. Rather, it means, loosely, "all the innocent people have been killed" -- or, more accurately, "all the good guys have been killed." The bad guys -- all those mother-rapers and father-stabbers, as Arlo Guthrie might put it -- are, definitionally, nobody. They have been cast out of the human family. Their fate is simply to leer and fester and then to be bloodily torn to shreds by some big daddy whose duty it is to restore order.
Emily, then, is essentially suggesting that the prison break be ended through the cold-blooded murder of every single prisoner in the station. This is something of a spiritual journey for her. When we first meet her, she's an idealistic reformer. She's come to MS-1 in the first place in order to investigate prison conditions. MS-1 puts all of its convicts in chemically-induced stasis. Emily represents a humanitarian NGO that is concerned that being drugged into a stupor for decades may adversely affect the prisoners. She's also worried that the prison may be using the convicts for illegal medical experiments. The stasis process is being considered for deep space exploration, and the prisoners make great guinea pigs.