Your example will offer a glimpse into your personality, philosophy, and approach to life and work. They'll examine your example and consider how well you'll work with their leaders and teams. Your answer to this question may also help them pair you with the type of leader who best matches the historical figure you admire, based on your ideals, helping that leader better serve as a role model for them through the experience.
As they state in their student handbook, "With a challenging program such as ours, it is important that students have a faculty member they can meet with regularly to receive mentorship and seek advice. For this reason, each student will be assigned a faculty advisor who they will meet with at least once in semesters I, II and IV to review academic progress, professionalism and any issues that may have come up during the term. Time for these meetings will be blocked out on the academic calendar to aid with availability. The encounter is documented and placed in the student's file."