Hillary being Hillary aside. Most women, especially in the professions, come up with a uniform. They may have a dozen variations like Hillary, but it is still pretty much the same. For about 120 years now, men have had the fallback of the basic suit, which has enough variations for every body type. Once a man finds his style, he tends to stick with it, sometimes (as with the ladies) a few years beyond when that look is best for them.
The difference is that we choose that uniform. No one is telling anyone (beyond a basic office dress code) exactly what to wear). Over time, things have changed. When I started working, you never saw man buns or even long braids on professional men except a few who played with the local orchestra or something. Now both are acceptable nearly everywhere.
But an old man or a young dandy can still pick a style of suit from around 1910 with a brocaded waistcoat/vest and be called "stylish." Sooner or later there will be a big change (I think I'm seeing it with Kilts going mainstream for me), but generally, fashion is impossible to wipe out. It can be modified, but it is always there.
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