It's far more costly to incarcerate than to get repayment for almost everything. It's still more costly to incarcerate than to just forgive the debt and make it painful enough to not repeat.
In 2015, according to [0], the average was about half that.
> minimum sentence of 5 years is going to run 1.2 mil
How do you get from 70K (presumably per year) to $1.2M over five years? On average it should be more like $135K, with some cheaper states spending about half that.
[0] https://www.vera.org/publications/price-of-prisons-2015-stat...
These numbers are quite a bit lower, I was reading the CA LAO numbers from 18-19 the other day and didn't really factor in cheaper states.
Even at 135k, the cost to society is 135k + the cost of the car + lost productivity of the individual and the economic drag that has on the immediate community, family/roomates/partners and such. At that price, getting community service is a major cost savings and getting repayment is even better.