The people need to be free to study whatever they want without profit interfering, but also they need to be attached to a for profit business in a specific arena that has monopoly profits.
What is the magic ingredient that we lose if we just give the public's money (plus some extra we get from avoiding the inefficency of monopolies) to academics directly and tell them to build cool stuff?
Is it patents? Is this basically an internal Venture Capital thing using monopoly profits? If they get to stick their flag in one new idea before anyone else then they get to extract rent from everyone else and/or squash competition and so pay for the 99 misses?
edit: they were forced to licence their patents in 1956 so before that, patents were presumably the goal.
https://www.aeaweb.org/articles?id=10.1257/pol.20190086
The above suggests that the open licencing of the patents spurred innovation, except in telecoms, where AT&T maintained their monopoly.