Even trying to keep in mind the young audience that this book is for, I felt that the book was very light on leadership itself, and was much better at other real-life tie-ins. For example, one pop-up suggests that the animators learned a lot about meteorology for the movie. Another pop-up describes the career choice of "Doctor" (in relation to a healer Troll). There is a very short glossary on the back page which includes; Architect, Candidate, Confidence, Coronation, Kingdom, Meteorology and National Park (only one of these being a leadership related trait).
So, while I don't recommend this book specifically for leadership information, I genuinely enjoy the story, illustrations and pop-up facts that go along with it. It is also difficult to read out loud, because to read the pop-up information, you have to temporarily drop the narrative. There's not an obvious place to pause and read the extra word-bubble.
Get this if you want a Frozen book for a Frozen-obsessed kid, and you want it to offer more than a recap the story: That is the sweet spot for this book. Skip it if you don't have a Frozen obsessed kid, or if you have a kid who is actually interested in leadership.