Must Read Mrs. O

From the Sunday Styles, New York Times critic Cathy Horyn offers fresh first lady fashion perspective. Horyn's central question (from the print edition): "Michelle Obama has used celebrity and style to redefine the role of first lady. Now, with four more years in the White House, can she step off the glamour pedestal and broaden the reach of her powerful voice?"
My instinct is to wonder why greater influence would necessitate eschewing "the glamour pedestal." Why should power and glamour be in conflict with one another? Would love to hear your thoughts and perspective!
"Michelle Obama, First in Fashion" [NY Times]