Earlier quoted context omitted.
Clearly leadership isn't sufficient. Central planning leadership under Mao led to poor results. Deng Xiaoping's reformation was to reduce centralized leadership. Nor is central planning leadership necessary. The early United States overtook Great Britain as the largest economy with minimal central planning leadership.
Central planning is not sufficient, but your comment doesn't show that it is not necessary. Markets are fundamentally pretty different from when the US overtook GB as largest economy.
This is why political philosophy is important. The United States was largely an experiment in political philosophy and it succeeded... temporarily.
Unfortunately, given that the modern world is largely run by either state-managed socialism or state-managed capitalism (neo-mercantilism), there will be no evidence to evaluate your hypothesis on Earth unless there is a mass depopulation (let's hope not).
In my opinion, we will only have new political experimentation and innovation after we become a multi-planetary species. Political experimentation on Earth is too risky.
Until then, pay your taxes to appease the increasingly dystopian and insatiable "leaders".