At 79 years of age, you'd think Hank Greenberg would be happy not to run the world's largest insurance company.You'd be wrong. When Greenberg took the reins at AIG, it's profits were $14 million. Today they are $11 billion. And for Greenberg, that says it all. Proof enough of the success of his hands-on style of leadership, he might say. In this regard, Greenberg is of another era. New York Times financial writer Kurt Eichenwald has written about AIG, and another major corporate scandal. Something called Enron.