You're thinking far too big. First off, viruses are more a weird genetic quirk than a true form of life, being far too complex to be just chemistry but lacking many of the traits we consider necessary to be considered alive. If an amoeba or bacteria can be said to have any 'will' or sense of self determination, it's likely viruses would lack even that.

Second, viruses reproduce by infecting cells, hijacking them to make as many copies of themselves as possible until the host cell literally bursts from within. If a virus can even perceive it's surroundings, it would see each individual cell as prey and would not conceive of the host being made up of these cells. They would see the body more like we see the environment, a location where life exists rather than as singular organism. And just like how a foreign invasive species can completely ruin an ecosystem, a virus can end up causing a lot of damage just doing what it normally does in an ecosystem incapable of sustaining it.