I Used My Endless Wealth to Collapse the Apocalypse in Advance

An absolutely fair apocalyptic game, a seemingly most unfair ability [Endless Wealth]. While other players are hoarding supplies in panic, Chen Mo has used money to weave a dragnet covering the world. His enemies are never zombies or natural disasters, but the other 299 "similar people" who also gain superpowers. How can he use capital to clean up the entire arena gracefully?