Originally Posted by Oddity
I believe it's absolutely possible.
Humans seem to have an instinct driving their ability to be attracted/respect/admire and/or willingness to follow another person. Assuming these are satisfactory definitions of the tangible effects charisma (as opposed to comeliness, or raw physical attraction.)
I was first exposed to this idea by Joseph Campbell in The Power of Myth, followed by Hero with a Thousand Faces. Compelling works.
Powerfully charismatic people