Final answer:
These questions address the role of leadership in historical interpretation, business competition, and group dynamics, all of which require an understanding of different types of leaders and their impacts on society.
Step-by-step explanation:
The questions provided reflect an interest in leadership and its impact in different contexts such as business, history, and politics. Regarding the most suitable candidate for an expressive leader, a role characterized by emotional support and maintaining the group's morale, it would likely be the director of a summer camp for chronically ill children, as this position requires a high degree of empathy and a personal touch.
The interpretation of history that views it through the lives and choices of leaders is often referred to as the great man theory. This theory suggests that history is primarily shaped by the impact of great leaders with extraordinary qualities.
From a political and economic perspective, the actions of government and business can be seen either as conservative or innovative, depending on the specific policies and the context of the decade in question. However, business leaders and their viewpoints can vary with some preferring competition while others favor conditions akin to a monopoly to maximize profits and minimize challenges.