An excellent blog post by Eric S. Raymond (the man who wrote ‘The Cathedral and the Bazaar’) on back-projection of current values onto an idealised historical past (with a bit of personal revisionism about his old sparring partner Richard M. Stallman thrown in for good measure)
I found this while researching precise meanings of “Free” (not necessarily free) and “Open Source” (also Free, but with a right-wing personal freedom rather than a left-wing community-ownership stance. The outcomes are virtually indistinguishable.) The thing you probably thought was Open Source, if you’ve ever thought about it, is called “Shared Source”, a term invented by Microsoft.
This is why the FOSS movement isn’t popular with managers. It can’t be explained with a pie-chart.