I agree. I notice a lot of people that can’t handle power are in public service positions.
I see the evidence all around, here's an example that's close to me. One of my wife's brothers is a TSA agent. He supposedly majored in psychology but he's always been unhinged and never made use of his major. Went from minor job to job, selling phones or cars. Easy to fly off the handle and provoke a fight, and thinks too highly of himself although he's a loser. Went to work for TSA, and loves to talk how he harasses passengers if they give him lip. That park ranger would fit right in as a TSA worker.