The Good Samaritan theory established more than 2000 years ago.
Adam Smith published his theory of economics "the invisible hand" in 1776. A free market where you buy what you want and others manufacture what they want the way they like. This will help the society where all benefit.
To avoid having extra supply in one location, roads, trucks, railroads, ...etc. were built.
Now the demand on potatos equal the supply in Idaho as well as in New York. More profit to the grower and to the market.
In the process, a new class of people fell off the wagon, and landed in the bottom of the society. The society and the individuals have responsibilities towards the less fortunate.
"For I was hungry and you gave me something to eat, I was thirsty and you gave me something to drink, "I was a stranger and you invited me in, I needed clothes and you clothed me, I was sick and you looked after me, I was in prison and you came to visit me.’
So "promise you wouldn't forget me... ever" Just a thought.