No, it benefits car manufacturers and sellers, and mechanics and gas stations.

Network/snowball effects are not all good. If local businesses close because everybody drives to WalMart to save a buck, now other people around those local businesses also have to buy a car.

I remember a couple of decades ago when some bus companies in the UK were privatized, and they cut out the "unprofitable" feeder routes.

Guess what? More people in cars, and those people didn't just park and take the bus when they got to the main route, either.