To take one example, nitrogen was discovered in 1772. Haber process (which converts nitrogen gas to ammonia) was discovered in 1909, and was successfully industrialized in 1913.[1]

In other words, when Haber process was discovered, the question was NOT "wouldn't it be great if we could produce fertilizer out of air?". The question was, "We know the air is full of substance that makes fertilizer. How can we make that happen?"

Or, alternatively, when nitrogen was discovered, nobody said "We paved road for making fertilizer out of air!" It was probably something like "How weird, air is full of this strange stuff that makes animals suffocate." And apparently its discoverer went on to call it "noxious air".

Honestly, I can't think of any important scientific discovery that was accompanied by "This is great! Think what it could do for civilization!"

[1] https://en.wikipedia.org/wiki/History_of_the_Haber_process