It was due to the over confidence and arrogance, that the ship will never sink. When titanic started sinking, many passengers were apprehensive to leave the Titanic at first, not believing that the ship was actually sinking, and a number of lifeboats left the vessel half-filled. Lack of leadership well explained. And yeah this happened on April 15th, a date which will live in history for arrogance. I look forward to that day for the fall of all arrogant empire, so that they don't kill innocents any more.