The brain is part of the body, the leader is part of the team.
The brain is not more important than the stomach. Without a stomach the body will also die, it just takes longer. Same for lungs, heart, neck, mouth, intestines, liver, and other important organs.
A leader isn’t more important than the other parts of the team, but she can and should have a big impact – on morale, on direction, on career path for other team members.
Are you the brain? What impact are you making today?