Furthermore, and perhaps more importantly, I think embracing CSS’s cascade can be a great way to encourage consistency and simplicity in UIs. Rather than every new component being a free for all, it trains both designers and developers to think in terms of aligning with and re-using what they already have.
We were asking the wrong questions. This is a classic trap. We spent so much time selecting the right potato for the ad that we never stopped to question whether a potato would convey the essential brand experience of Cards Against Humanity.