Consider that the ideas we exhibit (memes, music, books) and the things we adorn ourselves with (clothes, cars, other people?) are an indication of the way we want to be thought of.
It's the basis for aspirational marketing. I don't drive the BMW because I am successful so much as I want others to believe I am. Except it's deeper still: I only need to believe others believe I am. It's self-trickery. The buy-in of the brand, and what it purports to symbolize, facilitates those mental gymnastics. And it handles so well.