He probably renewed the contract because the area had a relative lack of well-paying jobs. Prisons prop up the rural economy.
So did slavery and coal mining.
Private prisons are wrong for many of the reasons FuzzyBear rightfully cites, but it's ludicrous to compare them to slavery.
What makes the comparison ludicrous?
People who end up in prison have been dealt their fate via the legal system. Enslaved blacks in the South didn't have a choice - regardless of whatever they had done, they were stuck as slaves, unless they tried to escape. No one is plopped in a private prison as a newborn.
The comparison is moronic and diminutizes slavery as it existed in the antebellum South.
The sheer silliness of this only distracts from the real problems that exist in private prisons.