I think you misunderstood, dragons aren't of this plane of existence, atleast not the ones I've heard of. They take the form of air, water or stone and are very well respected and revered for their power, those born under the sign of the dragon are said to share a Dragon's characteristics.
They don't live and die as other creatures, if they didn't want you to have their power, gods help the fool who tries to 'take it'.