When refusing to take sides causes more harm than even being outright evil.
All that is necessary for the triumph of evil is that good men do nothing.
— Attributed to Edmund BurkeParty A is in conflict with party B, and both request help from party C against the other. C, however, refuses to take sides and instead tries to either mediate the conflict or just walk away from it but fails and ends up escalating the conflict even more somehow, resulting in the destruction of both A and B, C themselves, or even innocent bystanders (or all of the above). This trope lives on the cynical end of the Sliding Scale of Idealism Versus Cynicism. Contrast Reconcile The Bitter Foes, which lives on the opposite side. Compare Kingmaker Scenario, Neutrality Backlash, False Dichotomy, Omnicidal Neutral. Compare/contrast No Points for Neutrality.
Will go under the Neutrality Index.