This main character truly doesn't care about his standing. Most Wuxia only superficially pretend their main character doesn't care about saving face.
His main advantage over others is not brute force, but his ability to exploit the rules. In stark contract with the typical Wuxia hero that gets immediate wish-fulfilment by cultivating a divine tradition or text passed down to him, either from the Heavens or his past self, or both. To put it bluntly the typical hero in Wuxia always gains his power from being subservient to some form of a superior indoctrination method.
But here, the main character simply borrows the power of others by simply manipulating people that follow both written rules and unwritten rules about face.
In other words, he's 100% defiant towards the mechanisms of soft power in Chinese culture, without immediately resorting to violence but deception.
So, instead of a violent psychopath who solves everything with the most senseless violence for the benefit of his cult, this character wins battles by non-participation and pointing the internal logic for violence of the world against itself. He exposes that there is no merit in abiding by the cult. His core motivation is to abandon his sect because it's headed towards ruin.
At best the usual Wuxia superhero only leaves his own sect for another. And often, if not always, the sect he leaves is either bootlicking for usurpers against the true leaders or royal family.
The problem for China here is that this story written better than most Wuxia novels of this theme. (The bar is set abysmally low.) The anti-authoritarian antihero offers a more sensible plot than the sectarian superhero-cultivator.
The author does all this, and then makes a twin brother a motif for this typical wuxia superhero. A complete loser, despite his elite talent and status, that is foolishly held back by being a loyalist who's unwilling to honor any contrarian principles of his own. This is inescapably expressed as abandoning the estate of his parents in favor of kowtowing to his abusive step-parents.
However, the main character doesn't hate his brother, he pities him. What an allegory for the general culture!