David Cacioppo stays plenty busy running digital marketing firm emfluence, but he still makes time to volunteer as a board member for Children International. Based in Kansas City, Children International assists more than 340,000 impoverished children and youths around the world. The nonprofit provides a wide range of services, covering nutrition, health, education and more, in 20 different countries. Cacioppo is in the second year of a three-year term on…