Only ancient families like theirs would understand that the difference between an Imperial Blood Noble Family ultimately lies in the difference between an emperor and the Human Emperor!
Imperial Blood can be inherited, but it will inevitably run dry someday. However, if an emperor ascends to the throne of Human Emperor, with the support of the human race's fortune, then the lifespan of this Imperial Blood world will greatly increase. Not only that, with the blessing of the human race's fortune, the number of descendants with Imperial Blood in the clan will also greatly rise.
This is the affirmation of the Human Emperor's achievements by the human race's fortune, manifesting itself upon the Imperial Blood of his descendants.
Take the currently reigning East Emperor for example, who comes from the Imperial Blood Noble Ji Family, a royal line older than the Taihao Clan, with three emperors.