I guess any investor would want returns on their investments.
> https://en.wikipedia.org/wiki/Peter_D._Mitchell*
I never said "all important discoveries come from the government". The Polio vaccine and penicillin and the theory of evolution and the last Nobel Prize for Graphene and a bunch of other things came out of non-government funded research.
That has no bearing on the fact that most of the biggest advances cannot be had without significant long term investment without guaranteed outcomes that most private investors are extremely unlikely to fund. I mean, have you seen the sort of research proposals professors write that actually get grants from the NSF?
Beyond things like DARPA and NSF and the like, think of things like the various National Labs. Nobody's winning Nobel Prizes every year at these labs, but year after year they do work that pushes the boundaries of human knowledge to enable future discoveries.