Earlier quoted context omitted.
That’s not societal breakdown, that just means the inbred aristocracy doesn’t go back to antiquity. Society and its rulers are not the same thing.
Still, there were families in those days with unfathomable wealth. If memory serves me well, one was so wealthy that when they sold their land after becoming Christians they caused a real estate crisis across the Roman Empire. (Source: The inheritance of Rome, Chris Wickham, one of the early chapters.) And just a few centuries earlier, Julius Caesar arguably was one of the richest to have ever lived on earth. It's se…
If I am the last person on earth, i effectively "own" the entire earth, but it means nothing.
Same for a man staving to death on top of a mountain of gold.
Which makes this billionaire New Zealand apocalypse compound trend all the more ridiculous, if society collapses, being a billionaire is going to mean absolutely nothing, you would think the money would be better spent ensuring that doesn't happen in the first place