LEWIS Hamilton said Formula One faced a pivotal moment and needed to show its values amid controversies away from the track involving leading personalities in the paddock and governing body. Red Bull team boss Christian Horner has been in the spotlight after a drawn-out investigation into misconduct allegations by a female employee showed clear divisions behind the scenes. Mohammed Ben Sulayem, president of the governing FIA, has been accused by a whistleblower of attempted interference in a race and allegedly seeking to deny certification of the Las Vegas street circuit that debuted last November. "As someone who loves the sport, it's definitely disappointing to…