It’s no secret that social games like CityVille have a seedy underbelly, relying on casino schemes to keep players pumping in e-bucks and spamming friends. But now that there is a social game that purports to correct the social ill of poverty in the third world, you can feel better about idly wasting your workday. Safari Challenge is a game on Facebook for social change. It hopes to bring playgrounds and running water to rural African communities. After adopting his daughter in Africa in 2006, the game’s creator Jacob Bonnema teamed up the charity Kids Around the World, a group…