I agree that it matters we apply technology responsibly. What I don't agree with is that science gives us the way to apply technology responsibly. Some use science to reach the conclusion that some beings are 'better' than others, and use that understanding to justify doing the worse atrocities to beings seen as below as long as it can improve the well-being of the 'better' ones. Sometimes these 'lower' beings are from other species, sometimes they are from our own. Science gives us technology, but remains moot on how we should behave with each other, on where we should go.
You have the view that science gives an approximation to truth and approaches it ever closer, only working out details over time while keeping the same big picture, and that it is not conventional. But what makes that broad-brush picture somewhat coherent over centuries is not that scientists of each generation evaluate all the available evidence and agree that this broad-brush picture is the only one approximately valid, but that they grew up in a world where they are
taught this picture, and are
taught to build upon it to work out the details. It's the story we tell each other and tell our children and that they tell to their own children that remains coherent, rather than the story remaining coherent as a sign that we must be approaching truth.
As an example, the available scientific evidence does not show in any way that Earth is not 'fixed in the heavens'. All we can really say if we're being scientifically honest, is that the story where Earth revolves around the Sun is easier to match with the available evidence than the story where Earth is the center of the heavens. You can come up with a story where Earth is fixed at the center and still account for the motions of the celestial bodies in as precise a way as we do now. The two stories cannot be compared scientifically, they are a matter of taste. Those who hold simplicity as a greater ideal want to stick to the first story and that's the one taught in schools, while some with other ideals prefer the second one. Why would simplicity make the first story more 'true' than the second one, what would make subjective simplicity a criterion for truth? It's only a matter of subjective taste.
And sometimes some parts of the broad-brush picture do change drastically. It used to be common scientific wisdom that there are no such things as microscopic germs causing diseases, that there are no such things as tectonic plates moving under the surface of the Earth, that we would never reach the surface of the Moon, that we would age at the same rate no matter our velocity and no matter how close to a celestial body we are, that all things have definite trajectories, now the current scientific wisdom is the opposite, and maybe the one of tomorrow will be something totally different yet again. We have now the common scientific wisdom that we can't see most of the stuff in the universe and that in the far future everything will have disintegrated and all life in the universe will have ceased to exist forever, which has far-reaching implications, but possibly the scientific wisdom in some decades or centuries will be the opposite yet again.
And then there is the fact that current scientific wisdom sees us as meaningless heaps of elementary particles subjected to unchanging cosmic laws, if all people really ascribed to this point of view I think the world would fall into a chaos worse than we have now, into even more widespread nihilism and depression. So for all these reasons I don't think that by pushing a 'scientific understanding of reality' onto people you will get what you really wish for. The picture it gives is not that nice at the moment, and not that true or devoid of conventionality either.
We build weapons to protect ourselves from others or to attack others, because we fear others. Increasing the power and efficacy of these weapons without reducing the fear that gives people the incentive to create them and use them simply brings us closer to destruction. We don't see others as beings like us, we see them as potential threats. We don't attempt to understand what led someone to hurt someone else, out of fear we see the one who hurts as a monster. And then we hurt the monster, and become monsters ourselves in someone else's eyes. But what if there is no such thing as monsters, but only beings who fear and who commit atrocities out of fear? What if if we really attempted to understand others we would learn to see the good in them and the fear on which they act, rather than assuming they are threats we need to attack or defend against? Then maybe the solution is not to be found in science, but in caring about others rather than only about oneself. Then how do you get people to wake up about this, I don't know, maybe it's a matter of caring about others every day until love spreads and wins over fear.