Is it being careful to not be offensive to anyone? That seems like a good thing. But then why is being 'politically correct' generally used in a negative sense? You've probably heard someone say, 'We have to be politically correct you know' in an exasperated tone. Is it because we don't like having to consider how others will receive our comments, especially when they don't agree with our own point of view?
Of course, being 'PC' can get out of hand, or ridiculous - exhibit 1 is the accompanying t-shirt picture. One quote says, 'Being politically correct means always having to say you're sorry'. I'm sure you've seen or heard many other examples of PC gone wild. Did you hear the story, earlier this year, of the teacher who wouldn't let a student's picture of an American flag be displayed because it may offend a Jehovah's Witness? I don't even get that. One of my biggest pet peeves is the old Push (some #) for English. Let's please assume I speak English since this is America, and have the person who doesn't speak English push something for their language.
Is that politically incorrect? Is that rude? Or does it just make sense?
Can political correctness be good? Related: What are your pet peeves?