The development and progress of civilization could not be separated from the demand for resources. It was simply impossible to remain confined to one corner and quietly develop. To obtain more resources, expansion beyond one's borders was the only option.
This kind of external expansion included two aspects:
One was ideological, such as spreading more advanced ideas to lower civilizations and helping them develop in return for resources. Put simply, it was an investment by a higher civilization in a lower one.
The other was more direct. For those unruly and ambitious types, the usual approach of higher civilizations was military suppression. Simply put, they beat them until they submitted.
As the current hegemonic civilization of the universe, the angels could not possibly have relied solely on spreading the concept of justice to "expand" throughout the ages. They also meted out justice to those who refused to obey.
As a result, the various forces of the universe held differing opinions of Kesha. Some called her the founder of faith in justice, while others called her an autocratic ruler. Praise and criticism were mixed.
No person—or god—could gain everyone's approval, no matter how outstanding they were. Kesha was no perfectionist either. She had always acted according to her heart. If she approved of something, then under the Justice Order, people could do whatever they wished. If she disliked it, then whether they were willing or not, they were forbidden from doing it. And if they refused to comply, the Heavenly Blade would descend upon them.
The umbrella sheltering weak civilizations and the bone-scraping knife hanging over higher civilizations—this described Angel Civilization under Kesha's Justice Order.
As for Yiren Civilization, they had once been the sort to say, "The Monkey King of Flower Fruit Mountain refuses to be governed by the Celestial