The human progress that Christ wants to promote is that of whole persons in their transcendent dimension and their historical dimension, in their spiritual dimension and their bodily dimension.
Whole persons must be saved, persons in their social relationships, who won’t consider some people more human than others, but will view all as brothers and sisters and give preference to the weakest and neediest.
This is the integral human salvation that the church wants to bring about— a hard mission!
But the church knows what its revolution is: the revolution of Christ’s love.