Zhao Xieren wasn't idle after his meeting with the Three Pillars Sect, as he then visited quite a few small local Sects that were present that day on the plateau. This time he was in the company of Sui Luxiao's son, and the two truly engaged in negotiations, without making any heavy-handed proposals like they did with Yu Zhen.
But his recent reputation, along with the fact he effectively helped everyone present that day, helped make the negotiations smoother.
The rumors of him being seen visiting other Sects, exerted pressure on the Three Pillars Sect, as they did not know whether he was searching for other prospective partners to replace them.
In the meantime almost all Major powers on the continent were satisfied with just obtaining information about Zhao Xieren, which revealed he was not a mysterious force, but just a fixer for others.