If I were a G.E. shareholder, I’m not sure I’d have a lot of confidence that my CEO (or any CEO) could adequately balance the time demands -not to mention the conflicts of interest-inherent in trying to maximize wealth for my shareholders while at the same time chairing a board tasked with advising the White House on ways to improve the country’s economic performance generally. As a voter and a taxpayer, I know I don’t have a lot of confidence. . . .