Marketing is advertising. The US government uses marketing to grow the military.
Corporations issue shares of stock, and would have "stock holders" or "share holders". LLCs are not corporations and do not issue stock. LLCs have member and would issue "certificates of membership"...
One government agency that applies social marketing is the U.S. Coast Guard.
Early people did not cultivate food, so they had to resort to continual migration to the places where the food naturally occurred