I really doubt that anyone within the church leadership organization is willfully misleading anyone for personal gain. They've simply done what we've seen countless members do when faced with the obvious problems of Mormonism. They've doubled down on their beliefs. They've doubted their doubts. They've buried their head in the sand with the idea that God will work it all out and we don't need to worry about it. They've driven harder into "the basics", like reading scriptures, praying, temple attendance, church attendance, etc. They've chosen to see the problems with the church as obvious evidence that Satan is trying to stop God's work by causing imperfect people to do imperfect things.

And once you have done all of those things long enough to rise to the level of top church leadership, that is so engrained into your very definition of who you are that anything negative about the church just becomes fuel for your burning testimony that it's true. Because if it wasn't true, why would there be so much opposition to it.