She committed a far worse breach of etiquette than the one she was on her high horse about, in attempting to embarrass someone else over use of silverware. Newbies and strivers always forget that or never knew in the first place.
Yes, she does keep up a certain image. Even when she was a kid, she spoke differently, acted like a royal or something. She’s not an actress, but she’s built up an entire public persona, and pretty much in private, too. Maybe she is an actress. She’s kind of Holly Golightly, without the whoring.