Bullying behavior to display power often comes from feelings of inadequacy. Usually feeling that they'll not be well accepted by others. To me that sounds like impostor syndrome albeit a more destructive way of expressing it. Said person feeling inadequate at their job in a position of leadership and power, so they overcompensate by abusing their rights that come with the role and bully/harass others.
In what cases is impostor syndrome involved?
Can most power trip behavior be explained from feeling self-doubt about their power position (while not honestly expressing it)?
I don't know how often accurate it is. However, I haven't seen explanations of power tripping within the context of impostor syndrome.
While insecurity can lead to people being bullies, I think people with imposter syndrome (which by the way, I think is a super over-used term made popular by LinkedIn) are actually genuinely full of self-doubt and lack confidence in their abilities - so I think they’re probably less likely to go on a power trip - because they wouldn’t believe they deserved the power they had in the first place. (If my understanding of imposter syndrome is correct).
These are just my thoughts - I could be wrong.