One of the core problems of critical thinking is that you can’t fix gaps in your knowledge or understanding if you don’t know what your gaps are. In other words - how do you know what you don’t know?
When you can quickly find and fill your knowledge gaps, you are said to be objective. Others naturally see you as a leader because you are fair-minded and treat others fairly, you are empathetic so that others feel that you understand them, and your decisions are respected because they are seen to be deep, well-informed and considerate. Objectivity is a rational skill, but its benefits lie in how you make others feel and perceive you.