There is the idea of universal human rights that persists outside of the nation state. Trade is a major lever and failing that war. This is why NK wants nukes because then we can’t invade on concern over human rights. But yes there is a more ethical and moral path and some nations are more ethical/moral than others. Some argue that we have a duty to interfere and others follow the Star Trek prime directive as the guiding principal. A compromise in Brazil would be for the tribes to give the children up for adoption or to the State.