`why rock the boat` is spot on! Most large organisations eventually go into a mode of maximising the free cash flow for shareholders. I guess more or less this is by design. Investors, Founders and early employees take risks in short run for the rewards in the long run. A company cannot keep saying the promised green land is delayed by another 5 years.

Some criticism of CEO might be warranted. But remember that CEO compensations tied to profit after tax. I guess the only way to get back old Google is to start one!

Once number of employees hits a certain inflection point (roughly when one can't identify everyone with name), the focus for a lot of people is to keep their manager happy. Because any other goal is too abstract. Safi Bahcall's book Loonshots had some nice discussions on this point.