According to Fasihonista's fashion industry salary survey, while the Devil wears Prada, the devil's worker can't afford to. The salaries are not great. It's just a glamorous job. That's all. As Allison P. Davis at The Cut points out:
…Nobody is making a ton of money, or even really enough money — unless you're a stylist, director of some sort (in the $100,000s), or a CMO ($306,600 a year on average). Surprisingly, although jobs in social media were the hot career, employees in that sector make the lowest across-the-board — even top-manager salaries averaged out at $71,900.
There's rent, nails, hair, makeup and wardrobe to think of. Time to think fast fashion perhaps?

[Fashionista, The Cut]