Student or Learner
"In the ten years since Collins’ study appeared, the world has become even more hyper-connected and interdependent. Power is no longer exercised over people but through them. With leaders and the led increasingly standing on level ground, great leaders avoid autocratic behavior and instead, look to those around them as the engines of innovation and change. Today, humility isn’t just a nice thing to have, it’s necessary to thrive as a leader."
Would "to exercise over" mean to manipulate and "to exercise through" mean to share with?
Exercise = use/apply.
"To exercise power over people" means to govern/control the people regardless of what they think or want.
"To exercise power through people" means to involve and include the people in the process of government and decision making.