This LADY has class, it takes alot to admit your mistakes. But I am sure alot of us can agree here, when I say it's alot easier to confide and trust in someone that can see and admit their own mistakes, rather than in someone that is so stubborn that they cannot see them, or to much of a egotist to admit it.
Admitting you have goofed or are wrong about something definitely teaches humility, and definitely builds character. (especially when it's a in a Free Republic Debate, or even when it comes to forgetting to spell check a post, lol 
)