The world finds meaning, value, and purpose in what we do (success, acts of kindness or generosity, etc.), what others think or say about us, and what we have (health, good family, material possessions, etc.).
The challenge is recognizing the balance of thinking too highly or too lowly of ourselves. We need proper perspective.
Our value comes from God. We were created in His image. We are His beloved. When we understand this, we will stop looking for value from any other source.
Leadership requires an ability to find the right perspective on self-value, but also to help others gain the needed perspective of their own value.