Let's look at Jiang Pengji's subordinates and their standing in society.
Feng Jin ranked the highest as the second son of Dongqing's Feng family. He hailed from a reputable family.
Wei Ci was the descendant of scholars that had regressed. Langye's Wei family was spread across Zhongzhao's Bianzhou. He was the only one left.
Feng Zhen was had suffered a reversal of fortune. His parents had passed away early and his relatives weren't dependable. Yet he still lived a wastrel life and squandered his family's inheritance.
Other than these three men, the others had a lower standing in society.
Based on this group of people, Jiang Pengji did not yet possess the capital to attract more talented people to herself.
However, if the Feng family made known their stance and were willing to support her, the situation would be completely different.