BTW - Sixpence, several other religions aside from Christianity have developed unorthodox spin-offs devoted to health and wealth. For instance, there is a fast-growing form of Buddhism called Nichiren Shoshu that assures its followers that embracing its teachings will lead them to health and wealth.
For instance if you thought the TBN televangelists preachers made insane and grandiose claims, check out what the official Nicheren Shoshu US website, for instance, proclaims:
Nichiren Daishonin expounds in His teachings the One True Way to attain absolute and unwavering good fortune whereby all the people are able to fundamentally overcome the basic universal sufferings of being born, of old age, sickness and death as well as doubts and disillusionments that plague mankind.
With strong commitment and a firm determination to make advancement in one's progress toward faith in the Daishonin's True Law, every believer, without exception, will be able to purify one's life, maintain both spiritual and physical health, bring joy to one's family, enrich one's life, and above all, transform all of one's misfortunes into good fortune, and thereby achieve true happiness. Likewise, nations currently besieged with racial strife or those continually tormented by civil wars will be able to bring about true peace and prosperity to their beloved homeland.
Nichiren Shoshu's greatest salesman and proselytizer in Japan, Josei Toda, for instance proclaimed:
When I meet you, I don't ask: "Are you keeping faith?" The reason is that I take your shakubuku for granted. What I really want to ask you is how your business is, whether you are making money, and if you are healthy. Only when all of you receive divine benefits do I feel happy. A person who says "I keep faith; I conduct shakubuku" when he is poor - I don't consider him my pupil. Your faith has only one purpose: to improve your business and family life. Those who talk about "faith" and do not attend to their business are sacrilegious. Business is a service to the community. I will expel those of you who do nothing but shakubuku without engaging in business.
How can we live happily in this world and enjoy life? If anyone says he enjoys life without being rich and even when he is sick - he is a liar. We've got to have money and physical vigor, and underneath all we need is life force. This we cannot get by theorizing or mere efforts as such. You can't get it unless you worship a gohonzon...It may be irreverent to use this figure of speech, but a gohonzon is a machine that makes you happy. How to use this machine? You conduct five sittings of prayer in the morning and three sittings in the evening and shakubuku ten people. Let's make money and build health and enjoy life to our hearts' content before we die!"
(Kiyoaki Murata, Japan's New Buddhism, pp.107-8)
Incidently the term Shakubaku, means "break and flatten" and refers to the Nichiren Shoshu proselytization method in the 1950s which was agressive to say the least.