Earlier quoted context omitted.
Yes, after being promoted to the head of the division with several people speculating that they were being groomed for even higher posts. And it took a scandal to get rid of them. Person should never had been a PM in the first place. You never hear people say "it's proof that Congress works because they ejected that pedophile (sending lewd messages to the pages) from their seat".
Hate to break it to you, but "an incompetent person rising through the ranks quickly before crashing and burning" is something that happens in pretty literally every large org. Any 60 year old organization with a large budget is going to have multiple instances of this happening.
Yes there are a few good reasons, but the population it applies to have largely been selected out by the postdoc phase (where I would say you have had sufficient experience with crushing scientific and engineering failure onself and watching others to be effective) and the pool of candidates therefore is vanishing.