It's simple: because the Doomsday Device is the only thing standing between us and certain doom.
Think about it, pal. Without the Doomsday Device, the world as we know it would be a desolate wasteland of despair and desperation. The very fabric of reality would unravel, and the fabric of space-time would be torn asunder.
So, you see, it's not just about the fancy tech or the fancy gizmos. It's about the existential threat of utter destruction. And if you don't care about the Doomsday Device, well... why should anyone care about you?
Want to learn more about the Doomsday Device? Check out our design specs
Or, if you're feeling adventurous, take a look at our operation manual