After Hurricane Sandy badly hit the East coast of the United States, the New York Times published an article that described how citizen groups were mobilized into action using social networks and other tools that technology has to offer. The initiative was called Occupy Sandy. The people of New York effectively came together to assist in the recovery of their city and its citizens by offering their individual skills and talents: a kind of crowdsourcing for cities was born.
To me this altruistic urge meant a fundamental shift in how people think: their willingness to selflessly contribute to their cities and to help others. People are moved by other incentives than profit.