My default position is not to assume it’s not important. I’m actually assuming it’s important from everyone’s negative comments. So since I don’t know much about what sort of advancements they’re engineering ( no one is really answering the question specifically I guess bc I can definitely wiki search them too.) so I want to know historically what have they improved and funded that has benefited society etc. so yeah I guess I can just ask AI since you’re saying don’t talk to other humans here…

The platform you're using- a website on the Internet- was funded for, and developed by, NSF (many other orgs contributed). They played a critical role in the 1980s when the net was in a period of tremendous growth. They helped enable the transition of the internet from a military/academic research project into a huge driver of the economy. That's just one example but they played critical role in developing many other science and technology.

I find in conversations like these, if I don't know something fundamental like the NSF's role in American science, it's pretty easy to do a short bit of research before commenting. It's not bad to ask questions, but I figure if the question has a basic factual answer in wikipedia, it's best to start there.