I would offer that, as originally conceived (pun unintentional), the JW religion was NEVER INTENDED to "survive"!
C. T. Russell thought his job was to gather "the elect" out of apostate Christendom so they could be joyously joined at the hip as The Bride of The Christ.
As time passed and the CASHFLOW possibilities of the Brooklyn Org were realized, it was still thought that JWs would remain a minority religion until their loving YHVH killed 90% of humanity. THEN the faithful dubs would be vindicated and the entire planet would become of one mind with the rest of the Universe.
Today, however, the prophetic failures of the WTB&TS have given the leadership a rude wake-up call. They NEED to keep the CASHFLOW going; they NEED their phony-baloney jobs and their submissive flock! How else could they survive with a résumé that says:
"1878 to Present: Failed Prophet"?