This contribution is absolutely tremendous, reminding him of the Kong Family from his previous life. Regardless of the dynastic changes, as long as the scholars were the ruling class, the Kong Family's status was firmly established, respected by any ruling class.
In some ways, the contributions of the Shangcang family to cultivators exceeded those of the Kong Family. To use a past Western analogy, as Washington is to the Beautiful Country as its first president, the nation will always hold that family in high regard.
Of course, such families must maintain a sense of awareness and not become arrogant due to ancestral accomplishments. Clearly, this is the case with the Shangcang family; because of their past contributions, they show little respect for other powers in the Cangtian Realm, no wonder Wanyan Rui holds such disdain for the Shangcang family.
The ancestors' greatness belongs to them; giving face to your ancestors doesn't mean you deserve the same respect.