Human rights education in countries that have a lack of human rights might serve to change the culture of those countries in some way. If a people don't know any other way to live than the way THEY live and are treated, it might be beneficial to show them how other people live and what rights and freedoms they experience. This could inspire peaceful or non-peaceful revolts and demand for change in these places.
I have to support the other posters here. Educating people about human rights is meant to show people that all others deserved to be treated as they would wish to be treated.
The importance of human rights education can be expressed by the idea of thoughtful, compassionate, emotionally intelligent citizens.
The idea of human rights education is to help individuals become empathetic and understanding so that there is less possibility of one person abusing another, one person ignoring abuse being inflicted on another, or one person failing to understand that humanity is universal - every human being is equally human and therefore equally entitled to humane treatment, all the time.
Human rights education is the organized attempt to encourage nations to treat their citizens according to basic standards of justice. The problem, of course, is that sometimes there is great conflict, between cultures, about what constitue "basic standards of justice." Some countries, for instance, impose the death penalty, while others do not. Some countries believe in "equal rights" for such groups as women and homosexuals, while others do not. An attempt to offer a universal declaration of human rights can be found here: http://www.un.org/en/documents/udhr/
I am not sure who is being educated here. Basically, human rights means having a basic respect for others. I like to think this is built into our culture here in America, and we spend a lot of time trying to spread these principles to other parts of the world.
It is teaching people about what human rights are and the ways in which they are being violated in various places around the world. It's important because people need to be aware so that they can support organizations that fight for human rights or so that they can push their governments to support human rights.