Hazard detection and reading signs. One must be careful when leaving the world of inertia to do battle with gravity. The lead climber can break a dead branch and endanger all of those below. Mutual sharing of ideas. Not everyone has all the answers.
Different viewpoints can save enterprises.
Appreciation of unique strengths. Some people will outperform others in different skills. One climber might have superior skills climbing between the branches while another could be faced with a dilemma. Skill levels does not make a team member wrong. The wise leader will recognize a team member's strengths and use them wisely to accomplish the goal.