Exactly, it's about walking the walk -- non-self-consciously and without artifice. It's a product of negative verbal space: The actual values/culture are communicated by what isn't said, because they're presumed to be self-evident.
Therefore, not to be flippant but a great way to fuck up the culture is to write a memo about not fucking up the culture.
Therefore, not to be flippant but a great way to fuck up the culture is to write a memo about not fucking up the culture.