When you find that a theology has nothing more to offer than what the world already offers, then that theology as a theology is impractical, and therefore, useless.
The ultimate story of success: When a nobody, who has never once in his entire life known the feeling of being remembered or respected, suddenly snaps and becomes a world dictator. On one hand it sounds just, but on the other, it illustrates the reason why a prosperity message has and needs its limitations.