Despite the desperate need to break his beloved out of Pingheng's camp, Xiuying exercised patience in order not to cause worse problems for Lui.
As, if it were that easy to break into Pingheng, he and his members would've broken into their camp and subdue them by now.
So he has to be logical about everything. If he changes the plan that the group and the police are putting in place to tackle the criminal organisation, all because of Lui, then he would've failed his country.
And it is this same country that both he and Lui still reside in, so it would not be wise to follow only his own desires as the leader of his group.
So Xiuying decided not to interfere in Lui's currently situation, but he made Caishen get someone to keep an eye on what was going on in Pingheng, as they continued to gather more and more information to make plans to face them in the near future.