Today (Wednesday, October 16) is the 45th anniversary of the Tommie Smith/John Carlos Black Power salute on the medal stand following the 200 meters at the 1968 Olympics in Mexico City. The third person on the stand is Australian Peter Norman, the silver medalist, who supported Smith and Carlos by giving them his gloves and standing at attention while wearing a badge of the Olympic Project for Human Rights. And while Smith and Carlos are generally regarded as heroes who took a stand, 45 years ago they were vilified and expelled from the games.
Of course, gay rights have become an issue for the 2014 Winter Olymics in Sochi, Russia, given recent legislation prohibiting gay-rights "propaganda" and public displays of homosexuality or support for homosexuality. And the International Olympic Committee has repeatedly and publicly reminded athletes of IOC regulations requiring respect for the home country and its laws--in other words, athlete protests of these laws will not be tolerated.
In other words, the "Olympic Ideal" of free expression has not evolved much in 45 years.