To Augustine, we have two ways of acquiring justice: transcendent and immanent. Some describe imminent justice as legal justice and transcendent justice as religious justice. However, the Social Justice movement conflates the two.
Rawls seems to have thought that one must choose between believing in an omnipotent and good God who cares for human beings or hoping for a more just world through human effort. Choosing the first meant resigning oneself to living in a world filled with egotism and evil.
Never forget that most of the abuses of the Roman Church are inextricably bound up with its doctrines, and that its so-called infallibility renders it incorrigible.