Google's mission statement is: to organize the world’s information and make it universally accessible and useful.

It isn't to fall on it's sword and risk the entirety of the company fighting the US government on principale. I'd argue that doing that putting out of work tens of thousands of people in the worst case would "be evil".

http://www.google.com/about/

#1 of its core philosophies is:

"Focus on the user and all else will follow." (http://www.google.com/about/company/philosophy/)

Don't you think safeguarding its users data and keeping their trust would fall under that?

From a business perspective, if Google loses the trust of its users, it's the beginning of the end. Safeguarding user trust should be priority #1.

They do safeguard their users data. They also comply with laws under which they are subject to, they aren't mutually exclusive.

I didn't say corporate lobbying was a fiction, I said corporations as independent entities are a convenient fiction; corporations are tools through which individuals exercise power, not real entities that have power of their own.