I think that this book has been recommended many times on this site as a useful tool to help strengthen one's children against cult indoctrination...
http://books.google.com/books/about/Teach_Your_Child_How_To_Think_Rei.html?id=s3hnPgAACAAJ
And speaking of cult indoctrination...
Depending on the childrens' ages and comprehension levels, you might suggest that they check out some books on cults.
Better yet, read up on the subject yourself and then if they are interested in your reading matter, suggest the books that you found most helpful.
A few quiet discussions about the damage that cults can do to peoples' lives, after said books are read, could be in order too...
Of course, wifey will have to be kept in the dark about the new reading matter - initially.
People have given you some excellent advice here. Please don't throw out the "baby with the bathwater"; no one literally suggested - or is suggesting - that you advocate a lack of respect for your wife...
However, I wouldn't be surprised if your respect for your wife has diminished over the years as you've watched her 'flip-flop' behavior and cyclic loyalties to the cult...
Zid