Repay Medicare if behaviour results in injury

If a drunk driver crashes their car, the motor vehicle insurer won’t pay — which is fair enough.

Why should Medicare pay for treatment of their injuries?

I believe they should be treated as per normal but when they are over the worst, some repayment of Medicare costs should be sought depending on their capacity to pay. 

This should apply to those who claim to be unable to pay, even if it means deducting a small amount each fortnight from their pensions.