Dealing with the Dragon Suppressing Stone, he definitely wouldn't use the connections of the chamber of commerce or his own in the Capital City; that would be a pure path to destruction.
Getting Lin Han's help was different. After all, he had a high cultivation level, was wild, and wasn't involved with the Capital's court, making many things easier to handle.
In the following period, Tang Yu continued his usual business in the Capital City, managing the chamber of commerce and handling the affairs of the Royal Guards.
Nothing major happened in the Capital City, and nothing major could happen.