Not the vast right wing conspiracy
Just egotistical and power-hungry morons that like to micro-manage and feel threatened by people with views counter to theirs.
The tie to the right wing is that the trait seems to latch itself to that philosophy more than to the left wing side. I've observed that in business and personal life throughout my 54 years.
No statistics are necessary. If you haven't seen that yourself you haven't been looking.
Art