The hall of great scientists is packed with holders of strange beliefs. Half of Newton's writings were on religious speculation, alchemy, and the occult. One of Einstein's very favorite books was Blavatsky's "Isis Unveiled". Just about every key person in early QM was deep into the Vedas. Kary Mullis was an AIDS denialist, and questioned the utility of his own test as a virus detector. If you really think about it, you will see that this phenomenon arises more from necessity than coincidence.