"Take vampires. First you place them: vampires are stock figures in American horror movies. American..."

“Take vampires. First you place them: vampires are stock figures in American horror movies. American horror movies constitute a kind of cosmology, a universe unto themselves. Then you ask: what, within this cosmos, is the opposite of a vampire? The answer is obvious. The opposite of a vampire is a werewolf. On one level they are the same: they are both monsters that can bite you and by biting you, turn you, too, into one of their own kind. In most others ways each is an exact inversion of the other. Vampires are rich. They are typically aristocrats. Werewolves are always poor. Vampires are fixed in space: they have castles or crypts that they have to retreat to during the daytime; werewolves are usually homeless derelicts, travellers, or otherwise on the run. Vampires control other creatures (bats, wolves, humans that they hypnotize or render thralls.) Werewolves can’t control themselves. Yet—and this is really the clincher in this case—each can be destroyed only by its own negation: vampires, by a stake, a simple sharpened stick that peasants use to construct fences; werewolves, by a silver bullet, something literally made from money.
By observing these axes of inversion, we can get a sense of what such symbols are really about: that vampires, for instance, are not necessarily so much about death, or fear, but about power; about the simultaneous feelings of attraction and repulsion that relations of domination tend to create.”

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David Graeber (2015) “The Utopia of Rules: On Technology, Stupidity and the Secret Joys of Bureaucracy”

This is from an excerpt where Graeber deftly explains why structuralism (not a grand theory but as a method)  remains so helpful in terms of schematising and theory building.