The specialty of His movement was that the fallen candala did not remain a candala after his initiation but he was made to rise up to the status of Vaisnava which is far above the status of brahmana and other orders of life.
That is the process of social upliftment. And we follow the footprints of Sri Caitanya Mahaprabhu and His associates who were all kind enough to raise the social status of every one concerned irrespective of birth and occupation.
Such process is not only transcendental to all sorts of mundane speculation, but is very simple and innocent. The principle is a sort of curing a disease not only by administering proper medicine but also by supplying proper diet at the same time.