Because to annihilate all these outstanding disciples would almost be an irreparable hatred, such hatred would make a sect retaliate at any cost. Therefore, they never considered exterminating everyone. Just as Chen Xiong said, they only borrow the souls for a while.
The Hellfire Four Elephants Formation was instantly activated, then the endless hellfire was unleashed. Endless hellfire can most effectively burn the soul, but if used well, it can draw out a person's soul power. Through the strength of the Hellfire Four Elephants Formation, all this soul power was concentrated onto Qingnu! This was merely utilizing these disciples. Utilization is just proof that the Hell Demonic Sect is superior, but the Hell Demonic Sect did not harm these disciples' lives. So, in the absence of mortal hatred, other sects generally would not annihilate completely, after all, although the Hell Demonic Sect is low-key, it is not easy to provoke either.
