e.g. if you repay a 10 year loan in 4 years. You will be rewarded with cash as a percentage of interest that were yet to be paid in next 6 years.
In the US, the moral hazard is offset because there is a high reward for good repayment behavior and a major risk for bad repayment behavior. For example, the restructuring for bad behavior usually comes with other problems such as being blacklisted by creditors and/or banks, or not being able to get a nice job (some jobs in the US require good credit rating).