Those who acquired bitcoin in early days got larger share in less price. Later when there are very less bitcoins left to be mined and prices are astronomically high, it will be hard to acquire even fractions of bitcoins. Where is equality concept associated with bitcoin then ?
Even if the price of Bitcoin becomes astronomically high, the people would still be able to buy several satoshis. The price of one satoshi would never exceed 1 dollar.
Those, who acquired BTC in the early days probably never expected that the BTC price could reach 120K USD some day.
Equality doesn't matter when we are talking about financial assets and currencies. Any financial asset or currency isn't supposed to be equally redistributed among the people. Even if there was such asset, some of the holders would decide to sell and others would decide to buy more, which would eventually lead to the concentration of the asset in less hands.