If I popped up at your job today -- weird, but okay -- and asked you to close your eyes and imagine what you thought Cate Blanchett was wearing right now, I'd bet my vast fortune* that you would not say, "a white button-down, a denim skirt, and sneakers." I mean, she looks fine but theoretically it just feels weird -- like running into your 4th grade teacher at the supermarket.
*neither vast, nor a fortune.