Usually, dragons were arrogant beyond measure. It was one of the defining characteristics of their race, and one of the most significant reasons why they did not band together like most other races, keeping themselves weak relatively speaking.
Other races usually all lived close to one another, built entire societies living in close proximity, and aided each other, or at least traded with each other. Dragons, instead, were extremely territorial, to the extent that some strong dragons monopolized entire galaxies for themselves, keeping other dragons away. At most, they would tolerate only their own descendants within those territories, that too until they were strong enough to carve out their own territories.
