These are the most recent reports on these countries. They were probably even worse in 2010 and 2014.
www.hrw.org
Stay up to date on the state of human rights in South Africa with the latest research, campaigns and education material from Amnesty International.
www.amnesty.org
www.hrw.org
As you can see South Africa is not quite the "Rainbow nation" paradise it likes to think it is and the police are still murdering street kids in Brazil. My point is that virtually every country which has ever hosted a World Cup has poor human rights records but I can only recall the UK media ever making a fuss over Qatar.