Zayn was arrogant and vain.
Even though James demonstrated enormous strength, he could not care less because he was one of the strongest cultivators to be admitted into the Welkin Academy during the previous examination. If it were not for the fact that he was young and comparatively weaker than those who had cultivated for centuries, he would have gone to Earth to compete for the providence. After all, there was still a slight power disparity between him and the Outsiders of the Sealed Realms