Luke, who had cooperated with Dave throughout the mission, would inevitably be implicated. Worse, the mole and defector originated from Luke's own side, a detail that could easily be twisted into a narrative that Luke had secretly colluded with external forces. The opposing faction could frame the situation as an internal betrayal, reshaping the story to portray Luke as a conspirator rather than an ally.
And once suspicion took root, it would be enough to politically and strategically isolate him.
After all, Luke was also an obstacle to the Northern Mafia Faction's expansion.
Removing Dave would cripple one pillar.
Discrediting or eliminating Luke would weaken another.
