@jens@carlysagan As to VC. What often happens is that universities only take a small cut from their initial investment.
They host the lab for years, in which many efforts failed, when the golden goose comes around they are rarely included in the spin-off.
IMO It is not that these things don't happen, it is that the people involved rather cash out big than have the institutions take a larger cut (credit) where due. This is just greed and politics.