Usage of politically correct terminology sometimes results in situations where the usage is factually incorrect. One example is included in a poster celebrating the 60th anniversary of the founding of the United Nations. This poster lists the 51 nations who were signatories of the June 26, 1945 founding of the UN. This poster lists the People’s Republic of China as one of the signatories.
There’s one small problem with that: the People’s Republic of China didn’t exist in 1945. The signatory was actually the Republic of China. But the UN can’t put down Republic of China because the PRC would have a fit. So they have to put down the PRC as a founder, even though it’s wrong.
http://www.taipeitimes.com/News/taiwan/archives/2005/08/14/2003267684
And there are times when words go out of use becase of PC. Like the word ‘niggardly’, for example.
(http://livejournal.com/users/thaths)