Setting, or team, or subculture?
Imagine a superhero world where at some point (maybe recently), people started gaining powers based on the beliefs, ideologies, and culturual or subcultural concepts they embodied. Supers would then broadly be divided between these different groups, as opposed to between good/evil or other skisms.
The world might be dominated by supers empowered by concepts like various religions, dominant ideologies, and more universal concepts like money and militarism, as well as some wierd people empowered by errant concepts like urban myths and various sciences. Not to mention more powerful formely human entities that exemplify concepts like fear, death, and hope.
Then the pcs could just happen to be those supers empowered by the gothic subculture. They would be natural underdogs in a world dominated by people with the powers of angels, the invisible hand, or an m1 abrams tank. Of course, that might make them ideal rebels and heroes, especially if the more powerful, mainstream factions start getting together and trying to control the world.