Thats the thing, settled agricultural societies develope a division of labor that then requires a market economy and so people try to find something that can store value until they need something like a new rake. It is no coincidence that all prosperous civilizations developed some form of market exchange and money. The societies that did not, only exist now because of the good will of those who developed the more efficient system.
RE: The Story of Money: The Myth of Barter