Earlier quoted context omitted.
Larry and Sergey control 55% of the voting rights: http://www.forbes.com/sites/chuckjones/2014/04/02/google-sto... if the rest of the shareholders don't agree with them they can... do absolutely nothing about it
I actually don't worry too much about them. It's if/when these massive tech companies go bankrupt and monopolistic control crudely goes to the highest bidder (likely some leveraged buyout organization) that I worry about.
We've already seen a number of cases where technology that was originally royalty-free or open source becomes encumbered after sale of a company.
Theoretically, companies that want to "do good" could put IP and data in a separate trust, but that's kind of like throwing away money you might need when times are tough.
I remember people saying "but Sun would never.." before Sun was acquired. Oracle has been a decent caretaker, but I doubt that (for instance) that anyone ever imagined that there would ever be a need to fork Hudson.
The takeaway for all of us is - Don't trust assurances of companies about their assets unless they have taken steps to protect them independently.