A good system of government is resilient to bad leadership.
Edit: do any of the down-voters care to explain why this is not the case? Stable is generally considered a prerequisite of good and history indicates that not going totally down the tubes when you have a bad leader is a perquisite of stable.
The Roman empire lasted a pretty darn long time even with a lot of mediocre leadership. Various flavors of representative democracy seem to weather crappy leaders pretty well.
Communism and authoritarianism definitely aren't synonyms by definition. Not all authoritarian countries are communist. And yes, in practice, communist countries often are authoritarian.
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