While I certainly agree with your assessment of the prison-industrial-complex, I'm not sure the show itself is a cheerleader for the prison system. Lots of fucked up things happen to the women on the show - it certainly isn't a positive spin on prison, even if there is a tendency to white wash what's happening in the privatized prison system. The women depicted are often subjected to the exactly the kind of things you're talking about. It actually does a decent job at showing how the prison system is rigged against African Americans especially, how inhumane it can be, and how the system works in terms of setting up inmates for recidivism.
It might not be the kind of eye opening investigation on the evils of the prison industrial complex, but it's hardly pro-prison.