Self-perpetuating generational wealth is not a zero-sum game if said wealth is put to good work.
Having wealth morally obligates its holder to put it to use to benefit others. I think we all intuitively understand this; it's the impulse behind calls to "tax the rich!"
People the last 500 years who put wealth to good use, even in modest proportions, are part of the reason western culture is so rich. We would not have Bach, Mozart, and Beethoven today if someone hadn't employed them (though I do decry the relative poverty some composers lived in and some OSS maintainers currently live in - come on, people). And modern infrastructure wouldn't exist if capitalists hadn't at one time thought it worthwhile to invest in railroads.
