Dorgon was the regent for the child emperor. His policies of reappointing the Ming officials and continuing the Confucian Imperial Examinations helped the empire to stabilize and prosper.
The Manchus did not destroy Beijing and decimate the population as was commonly done. Perhaps this was because Wu Sangui and many other Ming officials had already sided with them. In this way, the Manchus persuaded other Ming officials and military leaders to surrender to them.