The B.D.L. committee seemed to make an effort to broaden the list, not quite banishing obvious socialites and actresses but nearly so. I was glad to see, among others, Catherine, Duchess of Cambridge; Christine Lagarde; Jenson Button; Colin Firth; and Shala Monroque. But Princess Charlene of Monaco was a stretch. Her style to me is something of a flat pancake, despite (or perhaps because of) the effort she applies. It’s hard to say the B.D.L. isn’t relevant in a style-shaping era, but does it ultimately offer us enough information?