Comment by bell-cot

This, definitely. But also - at the social policy level, there are two additional issues:

- Outsiders: It's good to keep members of your society fraud-savvy enough that they can safely travel & do business outside your society...without being easy marks for fraudsters.

- Stability over time: If your society somehow gets fraud down to ~0, that'll lead to big cut-backs in anti-fraud efforts, "end of history" dreamers proclaiming that fraud has died, etc. Which is obviously a set-up for a sudden huge resurgence in fraud.