I don't understand comments such as - it's their own country men who exploit them (recruitment agents, company management here in Qatar etc.)

Let's be clear on this - Exploitation and Capitalism go hand-in-glove. Every business will try to do the bare minimum to maximise profits. If allowed, this will happen anywhere in the world. But there are laws and regulations to prevent it. Laws which are enforced severely with drastic consequences for the company which might try to exploit the basic rights of a human being. Which is why you will not find this type of exploitation in the developed world, or even in the developing world where labour unions exist.

This is not happening in Qatar.