>>True, but if the middle class's gripe is that there are far too many rich people richer than they are without any appreciation of how much they actually have, it doesn't make them just or right.
But who said that apart from you? We can accept that many want to keep up with the Jonses- but that's not the point people are making here. The concern is not that the 1% have more, the point is that their behavior is antisocial and damaging to society. Society is not obliged to tolerate it and eventually, it will not. The 1% should perceive a duty to prevent this rather than retreating into castles and defying the peasants.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1