Alexander Pope said, "To err is human." I agree, not everything humans do will be one hundred percent perfect. Yet, if we don't try to improve, even with ocassional errors, how do we grow or better our lives?
I wouldn't be the kind to jump out of planes or fly to the moon. I wouldn't want to be someone who braves the elements and climbs mountains, dives into deep oceans, or crosses hot deserts. Nope! Yet, there are those adventurers who will and have, which has aided in bettering other's lives by allowing themselves to be human guinea pigs - often via their errors.
I feel it's the same with science. There will be those who make mistakes because they do everything they can to find a cure, for instance, before it's, eventually, approved for humans. Even then we can have flaws.
However, we are human beings and we've learned to put on our grownup pants and suck it up; many times and for many reasons. Hopefully, in the name of advancing mind and body. Goals.
Which is why, it would be rare for anyone to fall under the "mad scientist" category today. Mad? Possibly angry instead, because they're trying to improve the lives of many but will still be up against flaws in the system.
Flaws only due to no two living things being alike. Flaws because we want to fix things and we don't often have the time or money. Flaws because of humanity's big egos. But if we give up then what? What's the lessor of two evils? What would have happened if we all feared living and exploring? We may still be neanderthals.
No, I wouldn't want someone to deliberately poison me with scientific experiments. However, I don't want to die of any plight on animal or plant life either, which may, eventually, lead to their extinction, as well as ours.
Everything has to be weighed. There has to be a check and balance. Those who yell foul, even when they don't know the truth, can still serve a purpose. They, hopefully, keep people from becoming complacent or keep them motivated towards any higher purpose.
Higher purpose? Absolutely! We all should understand any higher purpose perspective but most don't. But then, we're all on our paths for a reason: you, me and even scientists. We must continue to keep them on their toes, with honesty and integrity, but not to the point of cutting off our nose to spite our face.
Furthermore, just because we call foul on any new scientific studies today, maybe for lack of awareness or out of fear, we have to keep revisiting any situation to see if anything has changed, or if it, actually, needed change. We become part of the problem if we don't. Number one rule that I've learned: don't assume - ever.
By the way, regarding neanderthals, nature has designed us to acclimatize to many things in life or we would still look like that. I'm sure we will continue to change. In fact, who's to say that over many, many years, we may only be one race of people, because of breeding or through any subconscience-driven science experiments for survival. We may look nothing like we do today. Think about it.
For instance, many look at Neanderthals and think: Thank goodness, we're not like that anymore! However, our future selves may be looking back on us and feeling the same way. Did a flaw in humanity or a science error create our past? Will it do the same for our future selves? I wonder.