From what it sounds like, Larry and Sergey are more or less full blown academics and therefore idealistic. Problem is, they aren't the parents of a Stanford project anymore but instead a multi-billion, multi-national corporationPatronizing comments about "academics" and "idealism" ought typically to be delivered before the target's company has attained megasuccess. Larry and Sergey's competency to lead a multibillion-dollar corporation has been proven for many years. More to the point, so has their ability to do it in a less evil way, a way that raised the bar for everyone. The issue is not whether it's possible for Google to be Google; we have an existence proof for that. The issue is whether Google is breaking its own values, and if so what the consequences will be.
Would it have been good business? Most assuredly not.
This wretched argument, so sure of its own hard-nosed realistic businessism, is just what people were saying 10 years ago to prove that Google should sell banner ads. Oh sure, that home page was cute. But look at all the money they were leaving on the table! Well let's just remember how things turned out: by sticking to their guns, rejecting that thinking, and putting users first, Google made orders of magnitude more money than they would have had they followed that path. (How do we know this? Because countless counterexamples ended up in the dotcom garbage bin.) Oh yeah, and they changed the world and the industry forever.
So what was really good for business?