We measure our spiritual growth by how much better we are now than we used to be, not by how much better we are than someone else. We all have the ability to grow and we all have something to teach each other. For spiritual growth we want to teach of things like love, peace, and forgiveness. These are eternal. Put ego aside that wants to teach winning, being right, strong and at the top of the heap.
Spirit over ego. Caring for others over getting ahead.