No, they have worked to eradicate a horrible disease like polio, and nearly eradicate several other major risks to public health, saving hundreds of thousands, maybe millions of lives in this country, many millions worldwide.They work for the majority...
You're pointing out that this comes at a small risk. That is true, but the risk is simply overwhelmed by the obvious, massive, life saving benefits.
I'm not sure what to say. Without vaccines it would be too late for hundreds of thousands of more kids, not to mention the brain damage for may more from the diseases we've nearly eliminated, birth defects, life long complications, plus all the savings in sickness and suffering of millions of others who suffered no permanent effects.Sad fact is that is too late for a lot of kids... an exception is no good when you have brain damage or dead.
The closest analogy I can think of are seat belts and airbags. No doubt they both have killed passengers who might have survived if they'd been thrown from the car, but anyone looking at those exceedingly rare exceptions to justify not wearing a seat belt or to disarm their airbags is irrational - the risks FAR outweigh obvious and proven benefits. And so we require them in all cars now and have laws that mandate use. Because of them more are alive. I think that's a good thing.