I've written before that those who SEEK power tend to get it. Why? they volunteer to the positions of power as most other people have other things they would rather do. The long term effect is the reaches of power tend to be overwhelmingly dominated by the power seekers. This can and does corrupt pretty much any organization over time whether corporation, religion, or government.

Those that would DO good in those positions usually don't volunteer for them.

So we end up with pretty much every organization being populated predominantly by the NEG type in your post.

EDIT: Ironically those that we could perhaps most trust with the power don't want it.