[grkvlt]

Indeed, what they (members of said sub-culture) all are is collectively different to, or in some way deviating too far from, whatever the current social norms, mores, or accepted majority cultural standards are. In this way, the group as a whole will appear unique compared to the majority of the population, who (usually) behave, dress and act in a (mostly) homogeneous way according to whatever the culture deems normal and within (somewhat) acceptable deviations.