Companies such as Google that build their business on free and open source software such as Linux have a moral imperative to contribute back to the free software community.
"They have ethical and community responsibilities to return at least those modifications that are not critical to their business and that are of general value to the community," Moglen said. "We will see over time whether there are additional measures necessary in order to secure cooperation in the community."
If you get rich from open source you have a moral resonsibility(sic) to pay your dues
Google earned their "riches"...this "giving back" mantra is absolute nonsense.
But this is not the case for Google or Yahoo, considered two of the largest Linux users on the planet. Although their Web-based software is used by hundreds of millions of people, these companies are service providers, not software distributors. So whatever Linux enhancements they have made can legally remain private
Google has played by the rules and now those that haven't earned their riches want to change them on the fly...so they can get their "fair share". This is what is immoral.