Which historical event did Qin people mainly benefit from when they became rich in Xinjiang?

It is not a historical event that Qin became stronger. The demise of the Western Zhou Dynasty escorted his drought-striken fields and Dong Wang to move to A Qin. Qin Mugong recruited talents, which enabled Qin to expand its territory; Qian Li's heavy use of Shang Yang's political reform forced Qin people to work hard and fight, greatly increasing the combat effectiveness of Qin State. These three things made Qin more powerful.