Mafiosi only produce law and order where it can be monetized as protection

Evidence

Unless they have a direct interest at stake, mafiosi do not protect a nameless, faceless “public,” which would be difficult to “tax.” Only in small towns, where everybody can be controlled, do mafiosi occasionally appoint themselves caretakers of anything that could be called law and order. — Diego Gambetta, The Sicilian Mafia The Business of…, 426

Categorization

• XREF: Direct corroboration of Gambetta’s own thesis (the book’s overall project) and a mirror of the private-protection-market logic in Milgrom’s law-merchant work: order is supplied only where it is excludable/taxable.