As many economists have pointed out, there are measures, largely through institutional design, that human populations can take to prevent a cultural spread of cheating. But what can non-human groups of organisms do against the spread of cheaters: that is, individuals that —unlike cooperators within the group— do not contribute to the collective good? Indeed, how is it possible at all that multicellular organisms such as ourselves evolved, if we are nothing but a highly integrated and cooperative group of individual cells? It turns out that the answer may force us to see cheats not as the doom, but rather as the savior of cooperation!