We all have a certain world view that is the context for information we receive on a topic. This is my world view on the role of religion and social justice.
Religions has concerned much more than social justice, but for the vast majority of history: social justice has been the product of religion. In the very recent past, the thinkers and social justice fighters largely left the religion. Two ills have come of that: 1) Religion has slowed (and for most stopped) adapting to meet the needs of the world and 2) Efforts for expanding social justice have failed to take root.
Just a passing thought.