There must be a common term for this and it is certainly well-known. A kind of wishful thinking of the trailblazer type. A combination of utopianism, humanism, naïveté, forward-thinking, and ethnocentrism. You wish for society to change in a given way, you predict that society will eventually switch to that direction, you wait patiently for social changes to happen, and you eventually notice that you’re in the minority.
Been thinking about “dreamers” («rêveurs», in Amélie), artists, idealists, intellectuals, marginals, elites, trend-setters. May even consider myself part of that group, somehow. A tiny minority. Running the gamut from hyper-specialist to Renaissance-type polymath. Getting jobs in different sectors but mostly in fields such as business, academia, expressive culture, or diplomacy.
Using the pattern of “ethnocentrism,” sociocentrism as social limits on thinking. Not necessarily thinking your social class to be better than others. But failing to notice that members of other social groups (in this case, the majority groups) may not think along the same lines as you do.
It might be what prevents some people to become successful politicians. Social life might be better that way.