No one is getting rich on 2% a year.
You're absolutely wrong.
How so?
OK. You're a billionaire. You put a billion dollars into a Bank of America savings account. They give you an interest rate of 2% per year. You close the account after 1 year with an extra $20,000,000 interest.
You now are rich on 2% a year.
$20,000,000 IS rich. Even next to 1 billion. Its not a matter of relativity. Its already been scientifically demonstrated that money stops buying happiness at about $70k a year; everything after that is just people attempting to make up for their personal shortcomings.
whether rich get richer has nothing to do with goal of crypto which is decentralized currency(my opinion)