This economy works only in a closed system of cryptocurrencies. When this system has allowed the Fiat all went according to rules. Owners of a large number of Fiat received the opportunity to buy large quantities of coins and this gives them the opportunity for manipulation. Perhaps in the future mining will be profitable only for the owners of hydroelectric power plants.
Money is powerfull use to got all we want in life
The rich people they have opportunity to take these advance use their fiat money
He/She can build own hydroelectric power plant for the mining rig