That's nonsense. You don't need objectivity for all that. Subjectively, we did all that, and also subjectively we didn't. If you'll permit me to explain the subjective angle against all of that.

Yes, scientific medical advancements saved many lives. Before modern medicine, about half of all babies died. However, death is a social construct. There is no law writ upon the bones of the universe saying "life is real". Life is just self-replicating compounds that humans decided to give a name. There's no such thing as dead babies nor alive babies if you don't buy in to the human construct of life. And yet, I choose to believe in life, and thus I am grateful to doctors for saving babies. A subjective gratefulness for a subjective saving.

Engineering and astrophysics put a man on the moon. Yet, masculinity and man-ness are social constructs. Neil is not a man because the universe decreed it, he's a man because humans did. And the same goes for his humanity. Humanity is just a silly thing humans invented. I am not impressed that a man walked on the moon, because I don't believe in men. Nor am I impressed a human did so. But I do choose to believe in people, and I choose to believe two people went to the moon. That's why I'm grateful to science for its subjective achievement.

Computing and telecoms created the internet. But the internet isn't real! You ever heard someone use the phrase "IRL". It literally translates as "in real life", and it refer to not the internet. The internet is fake. It's a social construct. It is not imbued with any more inherent realness than the illusory physical plane. But I choose to believe in the internet, and I choose to be glad science made it. Even as assholes tell me to go touch grass because they think I use it too much, and a dose of the illusory physical plane ought to fix me.

Hope this explains why science is fake and good.