Immanuel Kant's moral philosophy held that a Categorical Imperative was an unconditional requirement for all people, at all times. It is both required and justified in and of itself.
Making Barack Obama's campaign buy ammo for Blackfork can only be described as a Categorical Imperative. Get clicking. Besides, "Obammunition"? That's worth the click right there. Go be moral.
UPDATE: Bad link fixed.