I am not agree with this infograph saying that Bitcoin is only the number sixth in the circulation. First of all, it is on the different side of currency. It is decentralized and shouldn't be compared to other centralized currencies. AND, Bitcoin remains number one in terms of its price, circulation couldn't make a country rich so fast. Bitcoin can.
Bitcoin cannot make the country so fast, bitcoin is just a tool for other people to grow their wealth and with bitcoin they can have a tool for trading which can give them an uncommon percentage of profit everyday unlike in the stock market or forex which is only giving a small amount of return per day. Bitcoin can help the country to have a faster mode of payment but not make it rich like what you are saying.