Dragons are superior to every other race in this world. Dragons stand at the very top of the food chain. Every Dragon is a powerhouse. Every Dragon in this world is ridiculously strong. Every Dragon is born with immense pride and arrogance. Dragons would rather die than lower their heads and become a slave.
As a Dragon Monarch, Aditya's pride had no bounds. Aditya would never lower his head to any being. Even though he was a prideful creature, he didn't let his pride blind his eyes. He never let his pride affect his judgment and his actions. But this was not true for every Dragon out there.
The Aether Dragons were blinded by their pride. Despite being children of their leader, Leo, and his sister neither of them was able to inherit their Aether Dragon Bloodline. To the rest of the Aether dragons, this was their biggest source of shame.