Their identities were mostly Robbing cultivators, so from the very core, this batch of Wan Ming Incarnations did not have the genetic capability to properly manage a major power.
"Fine, I can only take it one step at a time and see."
He had considered contracting more Wan Ming Incarnations, but when he thought about the dead rival of Wanming City, which was the Daoist Domain Level power, Ancient Xuan Dao Palace, this Tao Palace would definitely send powerful cultivators to exterminate them once they discovered the existence of Wan Ming Incarnations. Should that happen, not to mention the Great Wilderness Dao Palace, even he would have no choice but to flee.
Moreover, people tend to rely on things. Once they use the Wan Ming Incarnations and take shortcuts to solve problems, it is very likely they will use the same effortless method next time.
Therefore, unless necessary, he would not use the Wan Ming Incarnations. This was a principle he had set earlier on.