Although in the Primordial Origin Space, and indeed in any world, the law of the jungle prevails where might makes right and the one with the biggest fists calls the shots, people within the same establishment cannot simply be killed at a whim; there always has to be a justification.
Otherwise, a massive uproar would inevitably ensue.
Not to mention the fact that City Lord Yuanhun was implicated in a conspiracy involving the Infinite Fragmentation Anomaly and the Scorching Sun Clan, who were secretly slaughtering countless human beings, using the Purgatory Furnace to refine them into blood-soul pills for their own consumption?
Chapter 1387