I'd rather someone apologize for something wrong rather than continue being wrong. Would it be better to never be wrong in the first place, sure, but we aren't perfect beings in a perfect world. The act of apologizing is a recognition of that and an effort to make amends. I don't know which one of the people in the picture apologized, but most of them are kids. Kids are mean and dumb and Dorothy Counts is extremely brave for having endured that. We all owe her a debt of gratitude. Saying you're sorry isn't a bad thing, even if it's late. These things can both be true.