Underrated comment.

Perhaps Mormons have in their belief system a strong motivating stimulant? I am trying to avoid use of the word drug here as it is pejorative. Perhaps, Coffee is just what we need to overcome the ennui and pointless of modern existence and a set of religious (or cultural) beliefs helps us do the same.

This would also imply that Caffeine consumption is lower in societies that are religious and have strong belief systems - religious or cultural, which can be tested!