Earlier quoted context omitted.
It actually does come about ”naturally”. You just need compound interest and bit of randomness. See https://journals.plos.org/plosone/article?id=10.1371/journal... This does not mean it’s good. The source even presents some methods of avoiding it. But the key point is that it doesn’t need some sort of conspiracy of the rich to happen. It will happen inevitably without being anyones fault if steps are not taken to add…
What you also need is self-multiplying investments and a lack of wealth, income, and capital gains taxes. The current financial system didn't happen by accident. It was intentionally built in the 1980s by the Reagan administration, at the behest of rich Republican donors. It was not inevitable, it was engineered.
One has to rather specifically design a progressive taxation system to avoid a power law.
Read the paper. The conditions for power law are very simple.
I live in Finland. A place one hardly can say is friendly to the rich. Yet we too have a power law, just with different constants than what US has.