We have bill gates and Elon musk hoarding fiat. No matter what system you introduce billionaires will always have an advantage over the average working class.
Before Elon bought his bitcoins, I had more btc than him, and I bet I still have more btc than Bill Gates.
At some point there will only be 21 million bitcoins (ignoring the lost coins). There are about 2,755 billionaires in the world, and over 51,882,000 millionaires in the world. They each won't be able to own a whole bitcoin.