As an accountant, I know that that number thrown as 'room and board' is not really such. It's a number to show what he would have been paying in his everyday life had he not been in prison. However, if he can prove that he still had to pay that much, ie, his wife was still out there paying the room portion, then that number has to go down. It's just like any other injury case - if you can't do your job, you don't get what you would have made doing that job. You get that less whatever you could make doing anything you could possibly do. There are deductions to the calculation. But I don't think there should be such a deduction in this case, as he still had to pay rent or mortgage... therefore, there is no deduction for that. But for the food, he still didn't have to buy food for himself. It would unjustly enrich him to give him money for food he will never have to purchase.
Well, yeah, that really sucks, but it's the way it works. I don't believe that's the way it should go.