Perhaps we're misunderstanding each other:
> What you are saying is not true- it is academic misconduct, with formal consequences, to not credit the person that did the work.
This is true in the sense of purported plagiarism, but not in the sense of citing who is 'responsible for the idea'. Review articles will often cite a senior article when describing work performed over time, even if the primary authors have changed.
> Typically the grad student or postdoc that actually did the work is the first author listed on a publication, and the PI that advised and obtained funding is the last author.
This convention varies by field and is not universal. It is isn't even constant in all fields of biology
> They also personally both get listed on, and obtain a percentage of profits from any patents resulting from the work.
This depends strongly on where the work is done (even the department within a university)
> no, researchers at a private for profit company like Google are not “academics.” They don’t need to follow strict institutional rules about fairly crediting people for their work, and they don’t need to bring in their own funding in the form of grants. An industry researcher only gets credit if their employer wishes them to, an academic is entitled to get credit for their work through formal rules.
The assertion about no academics in companies is not true at all—being an academic has little to do with where money comes from (if this were true, there were no academics at all in the 1700s, an obviously false statement).
Bell Labs, Google, MS and others have formal research institutes within their organizations. I agree that each has conventions around recognition, just like in other areas of research.
I’m still not quite sure what you mean by credit, perhaps you mean casually using the PIs name over the students in things like review articles and talks?
I’m an academic PI and when I was first getting started as an undergrad I had a falling out with a lab that had an abusive and toxic culture, and tried to publish some of my work without crediting me after I had graduated and left. I was able to contest the authorship and the journal actually changed the author list to properly credit me.