I think this is important to note that our American system of government makes us the Best Country in the World because it was designed with a series of controls that provide a stable mechanism for failure and recovery in the event of corrupt or incompetent leadership.
Most ideologies seem take an approach of "as long as we select perfect, competent leaders who perfectly follow or religious, economic, and political dogma, everything will run perfectly! Then inevitably they collapse or the system is stuck with them until they die and some new leaders appears who fools everyone into thinking THEIR religious, economic, and political dogma is really the correct one and if everyone just follows THEM, everything will run perfectly.
Our system has worked for 250 not because we picked perfect leaders but because the Founding Fathers knew that at some point, some asshole would be in charge and they designed the system to be so convoluted that even the shittiest ruler could only fuck it up so much for a limited time.