A profitable Linux Desktop distro?

I think you are wrong. I think there are a number of examples of incorporated organizations which make it a habit of documenting the financial worth of in-kind contributions of all sorts...including time.
Typically those sorts of organizations which make significant use of volunteers are non-profit...and there are compelling tax based incentives to want to make sure that sort of in-kind contribution of services is documented. And generally speaking there are reporting requirements for non-profits. Now of course, the rules of of in-kind contribution reporting are squishy.. but efforts are made to account for it when its deemed appropriate.

What we are seeing now in open source project management... is a pretty new model in how private business rely on a large volunteer contributor base. There are no established baseline rules for this sort of thing as to what is expected. Up till now for-profit business entities have typically been expected to deal with labor, investors and consumers....not a large contributor pool who are both a significant portion of your labor and also your consumers. We simply don't know what the best practise rules are. How do we know if the managing entity is taking advantage of their contributor base? We've no baseline standard of performance when it comes to expectations on business and contributor relations. Time to unionize.

-jef