That's a good counter-example, but still pretty far from 'accept any net-positive benefit' (however close to zero). Moreover, there only seem to be three such

That's a good counter-example, but still pretty far from 'accept any net-positive benefit' (however close to zero). Moreover, there only seem to be three such zones in the entire state: parts of upper Manhattan, parts of the south of the Bronx, and some parts of Yonkers.