Most agile coaches directly violate the agile manifesto like "people over processes" or "responding to change over following a plan" I've met some excellent on

Most agile coaches directly violate the agile manifesto like "people over processes" or "responding to change over following a plan" I've met some excellent ones that actually do what you claim as their purpose. But vast majority add zero value and many negative value. But I admit it's very coupled with companies' cultures.