Interesting question. I would argue that viruses have an obvious impact into our human ecosystems. Losing a father, a mother, a sister, a teacher, a doctor hur

Interesting question. I would argue that viruses have an obvious impact into our human ecosystems. Losing a father, a mother, a sister, a teacher, a doctor hurts not only the person, but us all. So I would only argue for the preservation of viruses in the wild if they, somehow, had an even larger provable impact in the long run. Also keep in mind that we don't need to eliminate viruses entirely, we can keep some samples in labs. So we aren't losing that much in term of potential scientific knowledge and we can always reintroduce them if we feel like. This is much harder to do with, say, polar bears. Once they are gone, they are gone for good. So it is in our best interest to preserve them in the wild. At least, until we figure out cloning or cryogenics.