(answer to the question "Do you know any happy business leaders?" - for a book project)
There are quite a few happy business leaders out there. But how about the "ever after" part of the tale ? I guess that could make an interesting chapter to wrap your fairy tales up.
Most biz leaders discover the hollowness of their quest at the end of the corporate road, especially those who didn't create their company. Being a former CEO doesn't mean anything, and even Jack Welch didn't recover from this first death.
Many try to compensate in a different dimension (ie philantropy, the Gates / Buffet syndrom). It depends on the kind of leader : some are born to rule and command, only a few have something that makes them special whatever they do, even when they do nothing, because it is about who they truly ARE.