social justice

What is social justice? Is it justice that the CEO's of big corporations get richer while millions of children worldwide starve to death every year? Is it justice that in the US we build prisons based on how many fourth grade black boys are in special education? Is it justice that many poor inner city youths have to join gangs to feel that they are listened to and cared about? Social justice should be about everyone getting a fair shake not about rich white men getting richer and making the rules while poor minorities get poorer. Social justice should be about all students having the same chance to learn about all societies and cultures not just about what Euro-American upper class males think we should learn about.
This is a link to a Video done by Bono of U2 about the issues surrounding social justice
http://www.youtube.com/watch?v=DHlnUBKX18I&feature=related