I feel like there's a fundamental difference between kinda rooting for something to happen and possibly taking matters into your own hands to bring it about. For instance, I might be fine with a chain of volcanoes erupting all across the world. The impacts would bring immediate global cooling of temperatures and a practical reversal of the ice caps melting. Consequently, however, many would suffer and the world would struggle. At least we wouldn't have to hear about global warming anymore, though! This is totally different than if I hatched a plan to trigger those volcanoes to erupt, and thereby caused people to die, lose their homes, freeze to death, and starve to death.
OP, if you travel to that other town and grab an infected object and bring it back to your town with the purpose of infecting others, that would be evil.