People like Keynes and Klugman (German Klug = clever) are actually very clever, but perhaps not so wise. The world, including academia, is more likely to reward and be attracted to cleverness than wisdom. Calvin Colidge and George Washington were wise, Lincoln was both wise and clever, Clinton was clever and in a perverse way, wise, but he was immature and acted impulsively in his personal life. Clinton may have been the most gifted person ever to serve as the President, but he was intellectually shallow and morally hollow.
Obama, otoh, is a nitwit.