With the power of authority in hand, everything becomes different. For instance, in a duel between two practitioners of the same realm and with the same fire attribute, one is armed with the power of authority, while the other is not.
The one who holds the power of authority can use it to significantly weaken the opponent's strength, and may even forbid their use of fire attribute power.
The difference between having and not having the power of authority is as vast as heaven and earth.
The authority that Jiang Chen gains control over is a part of Yin and Yang. Consequently, any practitioner who cultivates these two kinds of attribute power will face considerable suppression in front of him.
This is just a part of the benefits of the power of authority. There are many more subtle aspects waiting for Jiang Chen to discover.
