tices of the Ghost Sect who he killed were too wea
Therefore, there is no sense of achievement for him to kill these people. His efforts were sort of in vain, which can't be of any serious harm to the Ghost Sect.
“When Gao Ge is awake, he finds that he has returned to the earth before the aura reappeared. The world will usher into an era of practitioners soon. Various schools of cultivation and families of ancient martial arts will spring up. As a man who is living a second life, Gao Ge will never let go of the chance to grasp the resources, cultivation methods and treasure places first. In this era, there are many geniuses and I, Gao Ge, shall be the king of them.”