Might that situation (very long wait for service, seemingly-idle employees) be partly explained (or at least rationalized) as a sort of social ritual, to make t

Might that situation (very long wait for service, seemingly-idle employees) be partly explained (or at least rationalized) as a sort of social ritual, to make the establishment seem high-class, or the patrons wealthy leisure-seekers? I've seen similar situations in a number of American coffee shops and fancy sandwich shops. Workers can easily outnumber the waiting customers. The spare ones usually appear busy - with tasks that don't seem to related to getting anyone's order filled. Actually filling an order seems to be an intentionally-inefficient ritual performance. The (presumed) regulars don't seem to care.