in Mali, if you get a prison sentence, your family has to arrange to feed you. There are no kitchens in the jails, and you can't make money, so you have no way of paying the guards to go get you food. If you end up in a jail really far from your family or your family has no money to pay a local cook to feed you... And I'm sure Mali isn't unique.
This is why corruption in impoverished countries is such a problem. Rock bottom is where you're starting from, there is no downhill to go, and if you don't take all the advantages you can find, rock bottom is where you'll stay.
In the USofA? We have no excuses.