People can seem like they don't have potential, or aren't real people. But then you see them in the context where they are most truly themselves (e.g., singing a song they wrote). And then you see how they are deep and worth paying attention to.
It's as though the role society wants everyone to inhabit is that of the "typical" person. No dreams, no depth. But people can escape that role by doing what they love.
A parallel to Gell-Mann Amnesia. People are spun to us according to society's narrative (they spin themselves by adopting the roles we elicit.) We sometimes see people's reality, then when the moment is past, we forget.