In that battle, Bai Qi used the lives of four hundred thousand gods just to earn the title, "God of Slaughter Bai Qi, who buried four hundred thousand gods alive." In terms of sheer showmanship, his effect wasn't even as good as the Martial Saint Guan Yu casually using a cup of wine and a Tier 15 Sword God to execute Hua Xiong while the wine was still warm.
If Guan Yu ever found out, he would probably laugh his head off and call it a waste, wondering how much showmanship he could have squeezed out of those four hundred thousand gods if they were in his hands!
While Bai Qi and Lü Bu were undoubtedly terrifying, they were simply not in the same league as this Martial Saint!
Chapter 756