Yin Zhan was not only arrogant, he had a strong background too. He had the body of half human and half god, a mutated divine eye. He had lost his parents and had a terrific force of enemy but he had been taken as a disciple of the current Heavenly Emperor to be a god of war.
The way he acted was neither righteous nor evil. He saw maintaining the heavenly rules as his responsibility but he would omit the others. For instance, he wouldn't care how messed up his subordinates were.
Yin Zhan was combative. He was not vigilant over the death of Immortal King Gou but excited.
Through his Status, Jiang Ming was able to speculate that the Laws Net could provide detailed information about the past and that the Heavenly Emperor was not capable of suppressing all things. Yet it was strange that the Heavenly Emperor had the Laws Net.
Unfortunately, the information given was not comprehensive. There wasn't any information about the Heavenly Emperor nor the Saint.