English summary: The definition of leadership is unclear and shimmering; qualities of leaders are not easy to specify and often diminish in the eyes of their constituents. Willy Brandt, the famous politician engaged in Eastern transformation processes in the early 1960s was seen as a lightweight imitation of Kennedy. Initially, Kurt Biedenkopf was honored as 'wonder boy' but then teased as 'wound boy'. Even faster the popular Ralf Dahrendorf...