The S&P 500 may be hitting an all-time high, but these three safe stocks are missing out.The broader indexes rallied after the election results, closing the week at all-time highs. But plenty of industry leaders were noticeably absent from the post-election run-up.Here's why Coca-Cola (KO -0.25%), PepsiCo (PEP 0.05%), and Procter & Gamble (PG -0.11%) are sitting on the sidelines but are three dividend stocks that could still be worth buying now. The consumer staples sector has slowedThe consumer staples sec ...