How about it just seems morally wrong to create a business where the incentive is increasing imprisonment. This ranges from not just lobbying efforts, and in some states iirc, it's still correction officers working there. To over-reporting and escalating minor infractions so as to deter parole.

I understand that scandals happen in government managed prisons as well. However, the saying two wrongs don't make a right comes to mind. In this case the business model is morally wrong, plain and simple.