Is "Global Arbitrage" a form of exploitation or a legitimate freelance opportunity?

[Btaliat]

The execution of this global arbitrage will determine whether it is a good or exploitative way when it comes to freelancing. The process involves sourcing for service in highing pay countries and getting clients in a lower paying countries. Some people may take the advantage of the difference, especially clients. While some people have seen the process as being a dishonest and exploitative way, others have seen it as being a normal way. What do you think about this?