FWIW, open source is not an absolute good. It is undercutting the ability of your peers to make a living. It is making software a commodity, such that capital rich hardware owners can make a killing. See AWS.
It may not be common, but it is possible to make money on open-source software. Redhat would be the largest example. Automattic's WordPress is another.
If software can be profitable whether it's open or closed-source, then isn't open-source inherently better?
They continue to operate fairly independently, and there business is still fully open source. IBM executives have also paid lip service to their model, suggesting they might move towards it. (Of course, lip service is lip service, and action is action. Two different things.)
Commoditize your complement. https://www.gwern.net/Complement