19th Century Occultism was a bourgeois hobby horse, along the lines of Renaissance Kabbalism or the Pythagorean cult of Antiquity. Its exclusivity was, in itself, its key claim to mystique, and therein popularity. These subcultures have a tendency to lurk on the fringes of the Western conscience before retreating back into the abyss, to be supplanted by the next fad. It isn't comparable to the popular magic / healing craze of early-modern Europe, which was an organic movement lifted directly from the remnants of the pagan tradition. It was elitist for the sake of elitism, and its followers held established religious practices in contempt. By virtue of this, I can't see it making much an impact under any circumstances.