Those people targeted Chen Qing not because of the Cross Star matter. They simply used it as a pretext to kill Chen Qing, the most powerful contender on the leaderboard.
From the moment the Cross Star issue arose, they had planned to cause trouble using it as an opportunity.
A large part of Chen Qing's current fame was indeed thanks to their efforts.
Born in Blue Star, they had a sense of morality and order, but not much.
Essentially, there was no difference between them and a bunch of robbers; they bullied the weak and feared the strong.
When meeting someone stronger, they tried to tie them down with moral, legal, and order issues; when facing someone weaker, they oppressively asserted their power.
Among the top ten on the leaderboard, aside from Chen Qing the lone wolf, Shang Jia Bai Xian, and a commercial federation, the rest were mostly national forces from Blue Star.