In My Campaign :: Dragon
IMC, there are Royals that have studied under Dragons for just that reason.
True Dragons are all of one family, but they come in the varieties that correspond to the Primal Powers themselves. Every dragon, in its youth, begins to choose which Primal its own nature will follow. This need not be as its parent, and often is not as youth likes to rebel. As they reach maturity, a True Dragon's nature and the power of that chosen Primal match for all time. The Dragon becomes as timeless and powerful as the Primal power can be when wielded by intelligence.
In fact, more powerful than any Prince/Princess of Amber. A Dragon can draw on Infinite Power. They do not burn in the excess of power. They luxuriate in it. Take any measure of ego backed by tremendous power and apply that to the personality of any Dragon. While a Dragon can be harmed, the destructive potential of a mature Dragon is such that even a single Royal of Amber would be foolish to attempt it.
But they cannot change their natures. They cannot be superior for knowing all things, for tasting from every cup of knowledge. They are what they are. A single beacon of primal power. A work of Art—self-made.
In a more 'modern' context, a Royal of Amber can learn things to surpass these amazing beings. A Dragon is an expression of the strengths, and weakness, of specialization.