Why 'Don't be evil'?

I (unlike most of the Media) hate to critique. And especially, critique rising stars or stars that have already made it big like Google. And in fact what I am writing here is a reaction to a news report that was bordering criticism and apprehension about, who else but Google again!
It is not just media – looks like the whole world is worried because of Google even UGC is not particularly kind.

Anyway, coming back to the title of this post. I do not know why the company underscores its existence with a statement like ‘Don't be evil’ but I if I were to look that what the company has done in the part 3 years+ & the things that they are planning to do, I can almost see this statement having been written not for people outside the company but as a reminder for the company itself.

Perhaps, when Messer's Brin and Page cracked the algorithm and the opportunity that it presented, they knew they had struck big – really BIG and they knew that they could achieve a lot out of this breakthrough. That moment of breakthrough might have made them realize that with the opportunities and the possibilities that it offered they could very well end up ‘controlling’ a lot
Today we see this breakthrough in a way far beyond just a search engine with people keeping their photos, Blogs, videos, calendars, e-mail, news feeds, maps, contacts, social networks, documents, spreadsheets, presentations and even credit card information with Google.
In other words a significant part of their life is on Google. Also see (http://www.youtube.com/watch?v=xj8ZadKgdC0)
Back when they cracked the algorithmic opportunity and foresaw its multiple avatars, they might have realized that they could end up having a lot of ‘power’. They knew that power corrupts (and absolute power corrupts absolutely). Thus perhaps as upright men they wanted to ensure that they do not fall on the wrong side of their new found ‘power status’ - hence ‘Don't be evil’.

Make the best of the power that you'll gain and make it work for the people of this planet.

Coming back to the initial part about Media and its preoccupation with criticism - there is no limit to critiquing Google. Somehow the Media, Markets, Experts and everyone else in between loves to make a dig at Google. Is this the “I love the struggler/underdog” mindset?

For example here is another case though totally unrelated but it illustrates similar Media sentiments. In the past media always reported how Jaguar and Ford were inefficient, almost branding them as losers in the automotive war. But now that Ford is finally trying to sell Jaguar (while acknowledging that premium car marketing is not their focus) – there is no mention of it being a good (or bad) move .. just reports about the business being on the block. Why?
Do media just like underdogs?