To say that it was "common" to engage in wife-raping and child murder to collect shylock debts is ridiculous.
A beating,broken bone,or business takeover,sure,that can and does happen.
In fact,I can only think of one case that might apply and that was "Mad Sam" DeStefano,but I believe that even if he was a civilian,he would have wound up as a psycho rapist and killer since he was certifiably insane and sadistic.