Karkat Vantas
Virile God-Snake Tower of Masculinity
That's a pretty bland, over-general statement. You're pretty much debunking all of fiction, 90% of music and all non-documentary films as unimportant. And I couldn't disagree more. Us humans aren't a 'what is' kind of people. Even grounded, productive people take 'what could be' and apply it to 'what is', to make something that wasn't either, but entirely new. We are a imaginative, creative species, and that is as, or even more, important as reality.
"Fiction, 90% of all music and all non-documentary films" are all things that qualify as what is. They're fictional, but that doesn't mean they don't exist.