At the very least, in the Mystic Sect, there are still quite a few Great Divine Transcendents who have refined the Merit Gold Wheel to perfection, condensing twelve Merit Gold Wheels.
But in the Demonic Way, apart from Demon Ancestor Luo Hou, no one else is heard to have refined the Sin Treasure Wheel to a high level of perfection.
Other than that, there is no other difference between the Sin Treasure Wheel and Merit Gold Wheel. For example, after condensing nine Merit Gold Wheels, one can step into the Dao Venerable Realm whenever they wish.
The same applies after condensing nine Sin Treasure Wheels; one could achieve the Dao Venerable immediately.
However, the Dao Venerable thus achieved is not part of Immortal Dao but pertains to Demonic Way.
In the Prehistoric world, Demonic Way does not refer to evil people, but instead, a real Greater Path, parallel to Immortal Dao.