You're not considering the real and terrifying strengths that dictatorship has over democracy. In true democracies the politicians never undertake a plan that lasts longer than one election term because they have no incentive to do so. In China they feel free to undertake 20 year plans with large upfront investments because the party does not care about winning an election every 2-4 years.
Why do you automatically assume that elections provide a reality check? Would you say that the Democrats and Republicans in the USA are tightly coupled to reality given their frequent elections? On the contrary I believe that elections merely tie legislative actions towards what voters perceive as electable. It doesn't matter what the PATRIOT act does as long as a political ad can sell the idea of "safety" to you. Politics in democracies have devolved to little more than entertainment.
On the other hand, China has achieved something very close to a technocracy where rules are based on expert opinion. The economy is controlled by economists, health policy is controlled by epidemiologists, and media censorship is controlled by political and social scientists. You are more likely to advance based on competence in Chinese politics than you are in the USA, where elections are just a high school popularity contest. The Chinese government has plenty of terrifyingly competent bureaucrats.
On the other hand, China has achieved something very close to a technocracy where rules are based on expert opinion. The economy is controlled by economists, health policy is controlled by epidemiologists, and media censorship is controlled by political and social scientists. You are more likely to advance based on competence in Chinese politics than you are in the USA, where elections are just a high school popularity contest. The Chinese government has plenty of terrifyingly competent bureaucrats.