The way we envision ourselves is never a fully accurate picture, but rather a fantasy of what we believe of ourselves to be truth. The Victorians did not see themselves as restricted, hidebound, class focused, or obsessed with overt display of wealth, but the evidence seen through the clothing they wore gives us a truer view.
These quickly made casual items constitute a kind of visual underground, a worn form of revolution. The sentiments expressed, the thoughts displayed, can be a challenge to the dominant cultural paradigm, and as such won't get reproduced in the mass market, until that market can find a way to make the messages meaningless.
What is of greatest note here, is that given the incredible access we have now to information, it is accelerating the rate of society's change. So in order to keep up with those changes, the Attire language must morph more rapidly too, to be able to express what needs expressing about us. Is it finally a chicken and egg question? Which came first, the change, or the manifestation of it? Sure it is. But then, a good deal of human behavior distills to that point.