I think there is also a bifurcation to be had on inventions which take billions of dollars into a business to R&D and tens or hundreds of millions of dollars pe

I think there is also a bifurcation to be had on inventions which take billions of dollars into a business to R&D and tens or hundreds of millions of dollars per test vs inventions one mildly wealthy (or less) average individual can reasonably cover the investment of. The former is less about the invention making and more about the funding gathering.