WTF is a "responsible taxi service" ? Is the bar to being 'responsible' getting some government license ?
Exposing itself to "license" means exposing themselves to arbitrary government control and has nothing to do with being responsible. On the contrary focusing on making good profits is the best way to help both drivers and passengers without compromising interests of both.
Because the government license insures the taxi has insurance, the driver is trained, every part of the taxi is separately checked every year, the taxi is clean, the driver can't overcharge, the profits from the taxi driver stay in the region and are not transferred to New York.
Exposing itself to "license" means exposing themselves to arbitrary government control and has nothing to do with being responsible. On the contrary focusing on making good profits is the best way to help both drivers and passengers without compromising interests of both.