Perhaps you all are seeing it from a human viewpoint. Who saw the film Prometheus? His race was responsible for seeding the earth. But then they realized they created a pest and wanted to get rid of it. Thinking here of the dinosaurs. Experiment gone wrong perhaps?
Another analogy of an ant farm. If your beloved ants escaped and infested your room, you get rid of them very quickly. Same with an infestation of cockroaches. You call pest control. In one of the states in the US they reintroduced wolves. The wolves did so well, they are busy legislating for them to be culled to a more managable 1500 or so. By the way, the legislation was introduced by ranchers.
Or the clever people create this wonderful virus. But now it starts killing people. Now they work around the clock to get rid of it.
So all these things depend on the viewpoint of the interested parties. Don't think compassion comes into it.