The royal edict that King Zhao received probably included elimination of those powerful individuals who had violated the laws.
Thinking of this, Shen Zhui could not help but feel somber.
Most of those powerful individuals held high positions and had certain privileges. Like Shen Zhui's current status, killing some people in his own territory wouldn't even raise eyebrows in the court, let alone warrant any action.
As long as one doesn't practice perverse methods, doesn't massively perform human sacrifice causing great public indignation, or openly rebel against the government, colluding with outsiders, there wouldn't be any difference from the regional kings.
However, if one were to massacre the people of Zhou, violating the court's taboos, then trouble would ensue.
That's the very reason the Monitoring Bureau exists!