2.Governments always want to know how much money is flowing into their country. They also want to control the money.
Yes, it is about people (the ones in the government) who are control freak authoritarians who want to have power over the citizens of that country in order to dispose of the products of these people to enrich themselves at the expense of everyone else.
Look at Argentina. Venezuela, Cuba, North Korea, UK, US. The rulers live like kings at the expense of everyone else.