And that's still the problem. If you get the one perfect person - and if they remain the perfect person - then your approach works. But people who are good enough, and will remain good enough, are in really short supply, so the odds are stacked against your approach.
And if you have a bad person, an unwise person, a selfish person, or a lazy person, your approach is catastrophic. So the rest of us don't want to go there...
Nearly every extant democracy, even those with constitutional monarchs, is a strong counterpoint to your claim.
>It may be said that "absolute power corrupts absolutely" but not if the man believes in and is led by absolute truth
The problem with the 'philosopher king' is that it's a Platonic ideal, and never really present in reality.
But governments should be about stability, resilience and steady progress, and not optimizing for superb efficiency at the cost of being extremely unstable.
Edit: Also to be clear, the dictator in question would be a fairy tale person. As such we could add a requirement for dragons, that would be cool.
The Yamato dynasty in Japan is the longest-lived political system on record, period. Historically, many emperors left governing to their subordinates; in some cases, there were even civil wars, but their longevity suggests an advantage to this approach.
I'd love to hear about this so-called "absolute truth" you have in mind, because I've seen people in power claim their opinions are the truth in order to get what they want at the expense of other people or resources.
Which one? Because there's 17 of them. (I count 17 kings of France named Louis, since Louis 17 never reigned or anything)
Side note for all the "Louis" of France: Louis XIV was succeeded by his great-grandson Louis XV, having outlived both his son Louis and his grandson Louis. It seems Henry IV's descendants had a penchant for naming everybody in line to the throne as Louis.
For his own sake, I sure hope he was trolling.
But even if you accept Louis IX as the perfect ruler, what do you do once he dies? What do you do when you get Louis XIV?
This is a dangerous double blade. Such leader can make or break a country all by himself.