Sadly you are describing the vast majority of countries in the world...
External intervention needs to be thought very carefully and in extreme circumstances.
History has shown again and again that outside intervention in countries where human rights violations are common has caused more harm than good.
Robert Fisk's opinion about the subject is that in almost all circumstances it should be left to the native population to solve the problem over time.

Unfortunately financial punishment against a country tends to hurt most the people who are the victims of human right abuse.

But I totally understand you. Such a complicated subject...