This is an irreconcilable contradiction, and the only deciding factor is how the monarch chooses.
Ying Zheng could choose to let the Qin people act as victors and enjoy the treatment they deserved as conquerors, or he could choose to value the people of the six states and grant them greater preferential treatment.
The only thing he could not choose was balance, as that would only alienate both sides from the royal court.
Chapter 1107