There were numerous deflections from JW organization in the past. I do not think the Bible Students could end the fiasco after 1914 because it was already internationally established movement that would guarantee comfortable living and sense of importance to the people on the top of the apex. To sat in 1914-1918-1925 that they do not have a truth or understanding in Bible would mean to pack the bags and end the nonsense publishing business. WT saw opportunity to create a movement by efficiently organize the End-Of-Days believers into religious cult that was something different than other mainstream religion. As the organization became larger, it transformed into traditional corporation structure similar to other established churches that would outlive the founders. WT cult will stay here and is not going anywhere. It has millions of loyal followers and thousands fools are ready to join at any time.
Any case, back to the topic, there are two biggest mistakes with WT. The first one is the belief that they have a special relationship with God and nobody else does. Second mistakes is that they believe with absolute certainity that they live in the Last Days and only this organization guarantees survival in Armageddon. Entire efford of WT publishing house is preaching, proselyting others, and distribute literature as the only necessary issue for Christians. Anything else for them is irrelevant. They do not invest nor care about the elderly, disabled, the weak. Like Northern Korea dictatorship, entire purpose and effort is dedicated to pending disaster and survival.