If he wakes up the desire to do things naturally, then he's done a great thing.
Opening people's mind to investigate and learn more about what choices there are, getting people to ask questions and read books and articles and share their experiences - that is a small miracle.
Whether he is a good writer or not, has had troubles or been critizised - piquing our curiosity about how to take better care of ourselves as whole beings cannot be a bad thing. No?