* Engage with people's fears, expending time and money and energy. Validate that there's something to be afraid of, because nobody would investigate it otherwise. People come up with different fig leaves for their fears, the goalposts move, and people stay roughly as afraid as before.
* Don't engage. People stay as afraid as before for the same reasons and scarce resource are invested in gainful efforts and research.
In theory there's a hypothetical third option where engaging respectfully with people's fears and doing appropriate research soothes fears and everyone is happy. I don't think that's actually available. Every time I've seen an attempt to do this, it's actually functioned as the first option above. You get nice articles like this one that convince few: http://www.slate.com/articles/health_and_science/science/201...
You're very right, life is tradeoffs. I think expending effort to try to reason people away from unreasoning fear is not a wise tradeoff. Do you ever wonder why most scientists don't engage with astrologers, creationists, or flat-earthers? Do you think it's maybe because the astrologers, creationists, or flat-earthers are right?