I'm sure hundreds of millions living in slums, with no jobs or prospects, but capable of plenty of spare labor, would be glad to hear about this new law of nature!
Poor people in Delhi, Lagos, Mexico City, Cairo, and all around the world where there are such slums, literally "kick dirt all day" - and beg, steal, live with what they can get their hands on, do some ocassional odd gig and try to survive on that, and so on.
We're not talking about working class poor people.