It is certain that the division of society into classes would be infinitely more visible if inter-individual relations were the brute and unreserved translation of relations of production. The proletarian would doff his cap in passing to the capitalist with his top hat and cigar, and there would be nothing more to say. But unfortunately things are a little more complicated, and ‘existential liberalism’ is not the unique translation of the effect of relations of production in everyday life...
Class relations disguise themselves at the personal level, and dissolve into "existential liberalism." Capitalists in general are bad, but each individual capitalist seems like a nice enough person, doing their philanthropy and what not, recycling like a good citizen, etc. The same is true of middle class/creative class types, whose personal congeniality and sympathy for proles at the personal level hides from them (read: me) their systemic role in oppression.
This is how ideological mystification at the level of everyday life proceeds; inequality is out there, we know, but above a certain level it is not experienced as such as a personal problem. No one wants to be proletarianized in their own subjectivity, in their own self-concept. So they explain the ways inequality affects them in terms of personal failings or bad luck -- not, the system has declassed me despite my hard work.
Part of our energy is thus spent reproducing the ideological fog in which we are all supposedly equal in our everyday encounters (consumerist relations in "democratic" marketplaces where everybody's dollar spends is a big part of this, but not all of it). We actually have to work to reproduce the illusion that "existential liberalism" coheres, that the deviations we experience are anomalies. It's shocking, then, when we experience something we can't resolve through this kind of work — when you get subjected to "unfair" police violence or are insulted through some bald piece of snobbery. But it may be that we prefer the ongoing work of sustaining our class-based sense of dignity than to cease with the work and live in the full, intolerable glare of the naked relations of power.