If we could wave a magic wand and suddenly make it so that the currently-externalized costs to everything that we do (e.g. the costs of correcting all the downstream impacts of things like driving a mile down the road, manufacturing a plastic bottle, ordering meat, disposing of waste items, etc.) became rolled into the up-front costs of these activities paid by companies and consumers, we'd have correct incentives informing every aspect of society and cities/commutes would look much different (out of necessity).
That's like saying making drugs illegal produces the correct incentives to stop the drug trade. Companies and consumers will break the law to bypass any artificial market inefficiency, and it will produce a thriving black market. Why would I pay $50 for a pack of hamburgers when I can get it for $10 from a black market butcher?
Having waved my magic wand, the black market butcher can't afford to sell his meat that cheaply without losing money on the sale—and besides, why undercut the going retail rate by so much more than he needs to?
