That said, we should be somewhat worried about desperation-fueled endeavours.
For example, Fourier Transform was there but no one use it because it is too slow and there was no urgency to use it until the nuclear testings were common place. In order to detect underground nuclear testing there was an urgency to detect the events using Fourier Transform and voila Fast Fourier Transform (FFT) was invented to speed up it up considerably without loosing the accuracy. Then we have Fast Inverse Fourier Transform and the rest is history.
Another great example was the need for robust command and control (C & C) during the Cold War. US military was looking for C & C infrastructure that can survive nuclear catastrophe and voila the Internet was invented. People keep denying this fact but since it's initially and fully funded by DARPA, it's kind of giving away the main motivations. The basic tenet of the Internet design is essentially to have a highly reliable communication in the face of nearly total or 99% infrastructure destruction. If I can recall correctly someone actually simulated the 99% infrastructure down scenario and the results US Internet is still working fine, and if someone know this report or publication please let me know the original source.
It's also a very common practices in many countries to have isolated and reliable nationwide network infrastructure for emergency usages for example disaster management purposes including military operations.
I think this is how humans and maybe most living things work.
Motivation is not that easy to come by.