Now that they know so much about the value of life and the power of the divine abilities of the pathways of nobles and merchants, they want Sir Kris to become their slave when they gain more slots, not Jack the fake noble.
If they select Jack to be their slave, they will feel as if they have been cheated. In order not to be ripped off, they have to aim higher.
Their greediness made them work harder, train harder, and read more books instead of going to support one gang or another to take the territory that they fought for.
They believe that they deserve the two free districts that people are fighting over because they were the ones who killed the previous controller of the two territories. And they would like to take the territory, but they also know that they don't have the tools to do it yet.
So they kept to themselves and focused on increasing their power. Unfortunately for them, the world wasn't willing to leave them alone.