However, I also believe that every great leader has a huge bias toward the inside- out, GreatMantheoryofhistory and human nature regardless of whether this theory is objectively valid or not.
Both have advantages and disadvantages, much as the broad, impersonal-forces approach to the past and the heroic, great-man theoryofhistory each have theirs.
Clearly, the "great man" theoryofhistory will always be ripe for debate, but as shown by a choice reading of CEOs the presence of a strong, charismatic leader can hold more sway in business than elsewhere.