Continuing on the Resident Evil talk, the T-Virus itself was the product of an eugenics program called Project W (aka: the Wesker Program), an eugenics program set on creating A Superior Breed of Man™, which would line up real nicely with the rats’ beliefs. (They’d need to ignore Umbrella and its associates being complicit in over a dozen zombie outbreaks/apocalypses, but they can always rely on longtermism for that)