The exact same way proof of purchase of massive bespoke mining rigs doesn't cause the rich to grow richer.
The people making significant money from mining cryptocurrencies are the ones with multiple warehouse-scale operations filled with custom hardware. These people aren't getting rich, they were already rich. Moving to PoS just removes some middlemen, not changes the fundamental economics.
The people making significant money from mining cryptocurrencies are the ones with multiple warehouse-scale operations filled with custom hardware. These people aren't getting rich, they were already rich. Moving to PoS just removes some middlemen, not changes the fundamental economics.