You don't need a quote from some rando that happened to be elected president to understand that in a largely capitalist system the people with the most money control most of the power.

Cryptocurrency doesn't change that, in fact cryptocurrency as crypto fanatics want it to work further concentrates that money as it rewards people far more for being able to save. Poor people generally can't save because the rich people controlling prices of necessities ensure they are living on the edge of their means.