Here's their article: Some entrepreneurs set out to change the world. Steve Jobs comes to mind. Others try to solve a niche problem and discover, over time, that the whole world wants their magic. Such is Jim Goodnight, the cofounder, chairman and CEO of SAS, the Cary, N.C.-based leader in the suddenly hot field of high-powered analytics software. Goodnight, 68, is a tall Southerner with a dry w…