What did Project Aristotle reveal about the importance of group norms? What did Project Aristotle reveal about the importance of group norms? One of the most important group norms was equality in conversational turn taking. Group norms are not strong enough to override individual tendencies and personalities. The "team's culture" or norms had little to do with group effectiveness. Successful teams always had the same patterns of group norms on conflict management, leadership style, and time management