It may not be 100% good, as there is the broader question of unintended consequences, but unlike us carelessly eradicating species, this is 99.99% "good". It's

It may not be 100% good, as there is the broader question of unintended consequences, but unlike us carelessly eradicating species, this is 99.99% "good". It's something that humanity seems to have little issue with - we have been extinguishing species for as long as we've been about, including other sapient species, so in the grand scheme of things a worm is a trifling thing. You are however right about the logical conclusion - we will swarm, consume and eradicate until nothing remains, going by our past and ongoing actions.