The point is that there's plenty of illegal behavior and only so many enforcement resources (which is by design right?) so we don't need to be worried for the officer's jobs, they can just switch to new legal focus area de jour.
It's awfully hard to retrain a cop to be a forensic accountant. The judicialbranch has been failing to undertake anything but token measures against white collar crimes. Actual police work against white collar criminals is not as easy as coercing a junkie into selling felonious amounts of a plant by product or made in a bath tub chemical.
