Why would that shift it from 'for the benefit of Google' to 'for the benefit of whoever makes the decision'?

If you're cashing out all of your RSUs over the next 5 years, you don't necessarily care about the long term ramifications of your decision. Just that it pumps the stock price in the short term

Because once the company is big enough, it becomes competitive and immoral enough for employees to start to fear each other. So everyone starts to develop an "every man for themselves" mentality.

Nothing to do with it. We're not mature enough to recognize the importance of a flat hierarchy and adopting a startup-like model with our internal teams (business and technical independence, succeed and you'll be rich, fail and you're fired)

As a result, the larger the company, the larger the hierarchy, the larger the inefficencies. At the extreme you approximate the government of a country.

Layers of managers who care only about collecting a paycheck, engaging in company politics and looking busy cause exactly this problem. Managers will pick the best decision for them, not anyone else.

What are your thoughts on companies that adopted holacracy?

And yet…

Yes. Those that don't make it to those transition points have "failed".