There's a part two to the fairy tale of the Mexican Fisherman.

> Sensing skepticism from the fisherman, the businessman moves onto the next boat and finds a more receptive fisherman. The two, sensing an obvious business opportunity, decide to go into business together. They raise a venture capital round and a year later, return to the pier outfitted with a dozen high tech fishing boats.

> Immediately, the price of tuna at the pier drops threefold with increased supply, forcing the young Mexican fisherman to increase his hours at sea just to maintain his existing standard of living.

> Shortly thereafter, all of the shallow water tuna have been caught and the young Mexican fisherman discovers his tiny boat is incapable of deep water fishing. Because of his limited savings, he does not have enough capital to invest in a deep water fishing boat and he is forced to sell his tiny fishing boat for pennies on the dollar as scrap because advances in technology have made it obsolete.

> After discovering that there is limited demand for an employee whose only skills are watching ballgames, playing the guitar and taking siestas, the young Mexican fisherman finds his only option is to take a job working minimum wage on one of the businessman’s fishing vessels.

> Several years later, the fisherman’s joints are shot through from the hard manual labor of operating on a commercial fishing vessel and an ill timed lift of a 150lb pallet of tuna finally causes his back to give way, causing permanent crippling. The fisherman discovers intensive lobbying from the businessman has weakened workplace protection rules and the fisherman is summarily let go with only a paltry settlement.

> After years of expensive medical treatments and crippling bills, the fisherman is finally forced to sell his land, passed along to him from generation to generation, to a development conglomerate run by the businessman who is buying large tracts of the entire village.

> Unbeknownst to the fisherman, the businessman has lobbied for the village to turn into a protected nature reserve, allowing for the rehabilitation of the environment and the restocking of fish in it’s pristine waters. The businessman painstakingly recreates the quaint, costal charm of the village he once visited, making it a paradise where the wealthy flock to when they want to retire into a life of easy indolence.

> Finally, 15 – 20 years after the original conversation, the fisherman and his wife are found dead in a homeless shelter. Meanwhile, the businessman retires to the village having made two successive fortunes first in fisheries and then in real estate development. He spends his days sleeping late, playing with his grandchildren, watching high def ESPN ballgames on a 70″ TV, and taking siesta with his wife. He occasionally strolls down to the village in the evenings where he regales his fellow millionaires with the story of how he found an unexploited niche in the marketplace and then took full advantage of it to make the fortune that got him to the comfortable retirement he enjoys today.

Much like the original story, this is of course a fairy tale - I doubt the businessman in question would put much effort towards the rehabilitation of the village's environment. Environmentalism rarely improves a business' bottom line - if it did, we'd see a lot more businesses lobbying for it.