Sound Off: Are Celebrities Supposed To Be Role Models?

I was checking my Twitter feed for some news stories and I came across this message from Brittny Gastineau.
Listening to @ciara "ridin" knowone dances better then c
She's beautiful. She's rich. She has her own reality show... and she can't spell. How does that make you feel? Do tweets like this bother you? Or is it not a big deal?
It really comes back to the one question that celebrities fight on a daily basis. Are they role models? Or are they just entertainers?
People look up to Brittny and perhaps this little tweet is sending out a bigger message than originally intended.
What's your take?
Sara Foster Sara Spraker Sarah Gellman Sarah Michelle Gellar