Self-esteem is not the same as self-compassion. I put self-compassion on the level of self-actualization because it is a spiritual ability. Even higher than that is universal compassion, which is on the level of self-transcendence. This level is not shown on the diagram because Maslow realized it later in his life. Self-transcendence is the enlightened stage of development.
Healthy self-esteem is not the same as high self-esteem. Healthy self-esteem is accurate self-esteem. It is possible to esteem your abilities too highly, which creates blind spots for where you need to improve.
Feedback from others can show you where you have overestimated your own abilities. Of course, the value of the feedback depends on its source. A person who just wants to criticize and drag you down is not a good source of feedback.
Self-Esteem is Personal
"As long as we suffer from low self-esteem - and it is a suffering - we will both fear others and crave their approval.... In the end, we are not here to fit in, to be well-adjusted, acceptable to all, or to make our parents proud of us. We are here to be ourselves." ~James Hollis, Living an Examined Life
Self-esteem is an inner experience. If your self-esteem is based on how many likes you get on social media, it's going to fluctuate wildly. Healthy self-esteem requires self-knowledge, as well as boundaries and assertiveness.
Self-esteem is a barometer that measures your success based on your personal values. You respect yourself when you are living your life in integrity. This means aligning your goals with your values.
Self-Esteem and Development
We experience self-esteem differently at different stages of development. At higher levels, self-esteem requires a connection with the soul. As we become more spiritually mature, our self-esteem shifts from being about worldly accomplishments to being about aligning our goals with our soul's purpose.
No matter how highly developed we are, we are still human beings with a body. Going to a new level in Maslow's heirarchy of needs doesn't mean that we no longer have to deal with the "lower" needs like eating food and having relationships.
At every stage, self-esteem is part of the picture. We always have a need to feel good about ourselves, even as we are working towards our highest creative and spiritual potentials.