One of the most effective tools in Brazil's efforts to eradicate slavery is a register compiled by the government that lists individuals and businesses found using slave labor. Those on the 'dirty list,' as the register is known, are fined and remain on it for a minimum of two years during which they cannot access public funds.
Obama might as well be president of Turkey or Brazil; it does not matter. It's the system that is absolutely flawed, where 25 or 35 or 50 people make multi, multi-billions on building Olympic structures while people live in Barbados and have no roads or clean drinking water. There's something pretty inequitable there.