The essential element in personal magnetism is a consuming sincerity - an overwhelming faith in the importance of the work one has to do.

Barton links “personal magnetism” not to charm, technique, or manipulation, but to moral-psychological force: sincerity so intense it becomes contagious. The “consuming” quality suggests a person whose inner conviction burns away self-consciousness and calculation, making their presence feel authentic and compelling. The second clause grounds that sincerity in vocation—faith that one’s work matters—implying that charisma is an effect of purpose rather than a separate talent. In Barton's worldview (shaped by early 20th‑century business culture and motivational rhetoric), leadership persuasion is ethically strongest when it arises from genuine belief in the value of the task, not from mere salesmanship.