I'm not sure why they shouldn't have equal value. So, in South Africa, a medical profession doing the same job as a medical professional in the first world would earn $40K a year while in the States it is $208K per year.

Computers and technology is twice the price, so as a result of exchange rates, South Africans are screwed. We get paid less for our food, our minerals and everything else. Why? Because of the exchange rate.

Why should any country have control over its currency? Why should goods be more expensive in some countries and less expensive than other countries?

The people who produce these things do the same amount of work.

As it stands, each year banks make billions in profits on exchange rates. There is absolutely no reason for an equitable exchange rates, and it should be based on the price of goods and salaries, earned, etc.