All Kings, Emperors and Chairmen are given authority to rule and govern China, but only on the sufferance of the JADE-EMPEROR and his Heavenly ministers.
Should an Emperor fail in his duty or ignore the decrees of Heaven, the MANDATE-OF-HEAVEN will be taken away. Usually to the accompaniment of earthquakes, floods and plagues of comets.
You may scoff, but it happened as recently as 1976.