I think, perhaps, the only reason she became as mainstream as she did (besides shameless self-promotion) is because she herself used her chest as the butt of many jokes. Thus, it was "OK" for her to be mainstream. (Fortunately for mainstream America, she just so happened to be a SERIOUSLY talented songwriter.)
Ok, so maybe Dolly contributes to the notion that big boobs are more a comedic device than a thing of beauty. That's OK, she's laughing all the way to the bank. And so am I. Call me politically incorrect, but to me there's no bigger turnon than a woman with a sense of humor about having big breasts.
Steve Z