Yes, I had that thought too. My wife is an artistic, leftist resister type with a background in ballet, dance, and education. She watches the Kardashians, all the Housewives, the Shahs, all that crap. She doesn’t aspire to this either. She buys all her clothes in thrift shops! So it is extremely complex.
And the target market for the Kardashians (I think, as far as I understand it) is not the people who find them sexually attractive. This is different from Marilyn Monroe, who mostly appealed to straight men, and for whom "sex sells" would be a perfect description. The Kardashian's market don't want to have sex with the Kardashians. They want to be the Kardashians (I think).