Robin Hansen explains:
“Illusory Power Transference” is the academic name for feeling powerful
due to a superficial connection to a powerful person, such as having
once been in the same room:
...
We propose that … associating with the
powerful CEO suggests that he, too, must be powerful. Moreover, this
minimal connection with the CEO would actually lead him to act as if he
personally possessed more power when making important decisions on the
job and interacting with others. ….
We use two experiments to … demonstrate
that men who have a tenuous association with a powerful other (versus a
powerless or equal-power other) felt more powerful and were more
optimistic, confident, and risk seeking, even though they could not
leverage the associate’s power. (more; HT Tyler Cowen)