Fifty-six years. That’s how long Leslie – or “Les” – Wexner has been C-E-O of L-Brands. It’s the longest tenure of any top dog found on the Fortune 500. Which brands does this veteran executive oversee? Think women’s underwear and scented candles. That’s right, the longest-running C-E-O is in charge of ladies’ lingerie brand Victoria’s Secret and the home fragrance chain Bath and Body Works.