Yeah, I realize that I'm commenting more on the complaint in the article where they say that getting 25 cents a hour isn't enough but when you don't have to pay for shelter or food 25 cents an hour is likely as good as or perhaps better than minimum wage.
Actually, according to the article as well as an NPR commentator, prisoners in Georgia receive no pay whatsoever for their labor, None, $0.00/hour.
Note all that extreme overcrowding, a lack of nutritious food as well as a lack of heating and cooling were mentioned in the demands. If they are correct, it's hard to imagine worse conditions aside from outright torture.