Expertise is a powerful asset. You have likely developed one or more areas of expertise within yourself. And, you likely find you are able to contribute in the world through exercising this mastery to help others.
Expertise is defined as one who...”has a comprehensive and authoritative knowledge of or skill in a particular area.” It can take years of experience and dedication to develop expertise in a particular area. The dedication to excellence required to becoming an expert is a valuable quality within itself.