I think any position of power attracts those with dark triad personality traits

The bigger the name of the company, the more attractive upper management is to these types of personalities.

If your idea of a satisfying career is navigating the various disorders associated with narcissists, egomaniacs, delusional, Machiavellian, for the status that it affords, upper management might be for you.

Mid to lower level management often just serves as the enforcement arm for this upper class. They make the “tough” decisions (which are not tough at all if you lack empathy), and force the managers under them to actually implement it (the real tough part)

The managers who have no trouble doing it (because they share the same traits) are obviously the best suited for promotion. And so it continues