Not sure if it's applicable in this case,but the UK has an interesting concept where you might end up in a prison with additional years piled on for failure to pay the outstandings.There were some high profile cases were VAT fraudsters kept getting additional years for failing to pay the taxman.
You won't get prison for the inability to pay... But you might get prison for deliberately not paying even if you can pay, or for lying on government forms/falsifying records.
I could have constructed my previous comment better: yes, nobody's going to prison for sime non-paymens but rather fraudulent activity and failure to compensate the victims of such actions.
