First, don't be so upset. Remember that the Jehovah's Witnesses is a sect in the midst of other sects. No one, either in the past or present, teach that the Governing Body or any previous leaders have claimed to have revelation or divine guidance in the form of visions, angelic visitations, theophanies, dreams or voices. I can't speak for the GB members, of course, but they might point out that as long as the organization has been active, its leaders have been subject to the foibles of men. In other words, it's been a learning experience, and Jehovah has allowed people to fail in their pride yet succeed in building a viable and faithful avenue for Jehovah's people to prepare to meet the bridegroom.
There is a problem with existing as an organization (not "church") with an assumed authority. After all, Jehovah hasn't exactly communicated with them; hasn't conferred any ministerial or apostolic authority, nor has he signed off on any doctrines, exactly, but they're sound enough to show that no other church can compete with them. When Jesus began to rule invisibly back in 1914, he subsequently inspected all the religions of the earth. Almost certainly he chose the Watchtower Publishers. I mean, who else was he going to choose? Mormons?? Please! No, by process of elimination, the angels looked approvingly on the Organization and joined in a heavenly chorus of, "It Had to Be YOU!"
Something else to consider is that revelation isn't necessary required to build a committed Jehovah-oriented organization. Certainly it can happen circumstantially. In other words, with all the mistakes and errors of men, the Watchtower Organization is a journey, not a destination. So along the way it becomes more competent, more perfect. But it will never be truly perfect until Jesus comes and relentlessly destroys the fiendishly wicked...you know, murderers, rapists, believers in the Trinity and such. At that point, he will publicly acknowledge the Jehovah's Witnesses as his people and then the earth will become as the Garden of Eden and all the righteous will spend all eternity here, picking flowers and petting lions, tigers and other grazing animals. They'll also be able to ride the cows like horses...but they can't eat them. But why would they want to with all the tofu and soy beans being so plentiful?
Anyway, I'm sure that's what they'd say if they were here. And who knows? Maybe I'm one of them.
Don't think of it as being the blind leading the blind. Think of it as being someone with glasses leading the blind.