While "extreme sports" types may not themselves drink Red Bull, the "non-extreme" people who do drink Red Bull are very sensitive to the notion that Red Bull is authentically associated with such sports/attitudes.
That is, they demand their products properly represent feelings, experiences and capabilities that they themselves do not pursue. And you see this in all sorts of markets.
People who will never serious hike demand "authentic" (or authentic-appearing) hiking boots. People who will never push their computers' limits demand high-end parts. People who will only listen to over-compressed audio will demand high-quality stereo components. Etc.