Crypto currencies are only a nerd toy and will lead into total control.
There is some truth in that, but imagine the other side.
Mr Shelby has a good running chain of shops. Not that big, not complicated at all and it makes a solid cashflow of profit. Profit that needs to go into savings.
Today, he signes a paper contract and transferes money to an investement vehicle. He'll see a red or black/green number on his mobile phone app.
In my Cyberpunk world, this investement vehicle changes the British Pound into a Crypto Currency that is used internally. Each Coin is a unique code. Mr Shelby now has access to his personal intranet side of the investment vehicle and can follow his money coin by coin being transfered internally to the accounts of the broker investors of the investement vehicles and in detail see where they invest the money.
Turned out that one of them invests in the same business model he made his money with, but on the other side of the globe.
Mr Shelby picks up the phone and calls that company. Turns out during the call they are interested in his forigne to their market products of the very same industry.
Guess what his portofolio does together with the sales on the companies balance sheet?
That is possible by block chain technology, not by our current money and if, only like The German Maut Vs The Swiss Maut. #gfyNormals
I give you that in this Secret Service ruled world in which some have no law, the opposite chance of opportunity is the case,like the Internet being a decentral network of computers. But than, a shop window can be opend by an appropirate sized stone, too.