Dragons, as a race that was too exceptional and faced widespread suppression, stand almost at the pinnacle of races on the continent.
Much like "countries crumble from weakness, while Han perished from strength."
Dragons, once the rulers of the continent, every race has developed ways to counter dragons.
No other reason, these dragons are just too powerful.
In the medieval times, royal families from various countries often clashed with the church, simply because they couldn't stand the church being so mighty.
Dragons are even more so.
Out of boredom, some conducted research indicating that in the past two hundred years, over 35% of research outcomes from the Mage Academy, Alchemist Association, and Alchemist Realm have involved dragon or sub-dragon materials.
Even dragon dung has applicable uses.
This incited many fearless merchants to rush to the pure-blood dragons, recklessly throwing money to obtain unwanted dragon materials.