californiagrownScience doesnt hurt the world. Bad people who use that science for evil hurt the world.
Not necessarily. Science, with good intentions, might make a horrible mistake and it could cause a catastrophe. Granted these are complete works of fiction, but they do point out that noble intentions in science could lead to horrible consequences: Terminator, Jurassic Park, The Matrix, I am Legend, etc. All of those stories begin with science making a noble leap forward but it can lead to disaster. I'm not saying they are going to become true and we need to abandon science, but I think it would be a mistake to say that only bad people hurt the world. I'm not saying that a cancer treatment will turn us into zombies, but there is the possibility of us trying to create something that could lead to a pandemic. It's not impossible.
There is the possibility that science could unlock something that could be inherently bad for us, without a bad person causing it to be bad. The premises of these fictional stories are not too far-fetched and who knows, something similar could be a possibility in the semi-distant/distant future.