To begin with, merely the corpses of the Demon Clan were an enormous wealth in their own right.
Not to mention that within the Witch-Demon battlefield, innumerable gods of Innate Dao Sovereign levels from the Demon Clan fell.
If Jiang Chen could find their bodies, or the Innate Spiritual Treasures they used in life, he would become significantly richer.
Of course, the greater the opportunity, the higher the risk is.
If the bodies of these Demon Gods became spiritually aware and reincarnated into zombie demons, their strength would be incredibly powerful.
Even if they only inherited part of their original strength, they would still be far superior to an Innate Dao Monarch, and could be considered unbeatable under the Taoist Master Level.
If Jiang Chen were to encounter them and wanted to suppress them, he would have to exert a considerable effort.