Some will claim these advertisements reflect the globalized era where transnational companies is common and the desire for world unity is strong. These assessments are wrong. Two main factors are in play. Lack of nationalism/patriotism in some Americans who prefer see the Olympics as a world unity event rather than a competition between nations. The second equally important reason is the desire of American companies not to offend the People's Republic of China. The Olympics are P.R. China's coming out party and they take offense to any perceived slight; France is suffering from a massive travel boycott because the Olympic flame was mistreated in Paris over Tibet.
The feelings of "unity" are not universal. In the People's Republic the ads highly tout the Red Chinese team in their effort to dethrone the Americans for most gold. Just check out the ad below where all of China supports their stars.
For a person who grew up with the "American Dream Team" and strong patriotic displays this time is hard to bear. It could be worse though. The games could be tainted by government corruption resulting in disqualification, human rights abuses, banning baseball, and mascots who some believe are harbingers of Hell. Oh wait.