Scientists messing with things they don't fully understand is why you aren't living in a cave, eating raw meat that you killed with your bare hands ... and then dying of infection from the bite wounds you sustained killing it.
You should thank God (the real one, who gave us a mind and the freedom to use it) for scientists who mess with things they don't fully understand.
< signed >
-A Scientist (also An Engineer)
It’s all about learning the “unknown unknowns.”
And what are the deaths of a few innocent people in the grand scale of advancing science?