You're right that the point of regulation isn't to turn a "profit" but the laws of economics always apply. If you have a fine of $100 for a widespread practice that costs $1,000 to collect, the state isn't going to magically allocate resource to applying it.

You could create a private right of action for this, but that is its own bag of worms.

> If you have a fine of $100 for a widespread practice that costs $1,000 to collect, the state isn't going to magically allocate resource to applying it.

Seems empirically false given e.g. the immense investment we make in counter-drug enforcement.