Tu Qianjue's words were very eloquent, but everyone present had their wits about them and Zhuo Qian was well aware that, if not for the deterrence of a ninth grade Martial King ancestor, Tu Qianjue would have directly snatched the treasure, with no regard for the code of honor among martial artists.
Whether for cultivators or martial artists, their actions depend on their preferences. The so-called code of honor among martial artists does not have much binding power. What differs is that some people have bottom lines, while others do not.
Take Su Chengyu as an example, even if the Zhuo Family did not plot against him or covet his treasures, knowing that the Zhuo Family possessed fragments of the Hongmeng Heavenly Book, he would also attempt to steal them, then compensate the Zhuo Family with some elixirs and martial arts secret manuals.