It is hard to quantify beauty itself but style, elegance, chic, call it what you will, that's relatively easy and Mary has it in spades. It's not the cost of of the wardrobe because there are women we all know or have met that are just as chic but on a really small budget.
I'd go further. Some women in uniform wear it like it's couture with a capital 'C'. It is quantity X on steroids and Mary has it in spades and the number of misses she has are minuscule when you consider the sheer number of times she steps out the (figurative) front door.
The actual number of ensembles assembled for a week must be daunting and I have noticed times where adding or losing a coat and change of accessories gives her a totally different look between morning and afternoon.
Comparing her "working" wardrobe with her down-time attire is very illuminating and shows she enjoys casual life so, in spite of the many who say she's a fashion addict, I think she treats her wardrobe as costumes or props.
