Cryptocurrency may set some "free", to a degree, in the sense that they will have more ability to do as they choose if the currencies they invest in have a perceived value greater than the investments of the initial investors. However, like every other form of currency, someone always loses. Someone buys in to push it to its peak and loses out. Some are also too poor financially to even invest in the first place, even if they see the potential. It inherently cannot set us, as a whole, free.
Only one thing can set us all free: truth. Societal understanding of what we are, what the universe is, is the only way we break free. The systems and ways of doing things that we follow are all founded on a lack of knowing that we are all One, that everything is One. When we fundamentally understand that as a society, and only then, can we truly experience freedom in reality. Only when we are all free are any of us free.
Also, being free doesn't necessarily mean not working. On the contrary, freedom takes work. More work than any system built on demanding by necessity that we work can possibly get out of us since we don't want to do slave work and thus that way of doing things faces great resistance. Work in the name of freedom, though, is freely chosen by individuals who are willing to do anything and everything it takes to be free. Freedom is a far greater payment, priceless, than any check we could ever receive for our labors in a system built on enslavement. In this way, there is no greater motivator to have a well-oiled, perfectly efficient, perpetual motion society than true, fundamental freedom.