Research on leadership in human societies has mostly been concerned with human relations in workplaces, especially those between managers and workers. Early research focused on how to make workers more obedient, useful, productive and efficient. Some people were just thought to be better - or more natural - leaders than others. More recently, leadership is seen as a property that emerges from the relations between individuals. Moreover, the health, safety and wellbeing of workers is valued more than ever, and leadership now comes with great responsibilities of care.