Less health problems - less money for the hospitals, MD's, therapists, insurance companies, medical home suppliers, medical equipment suppliers. If we all got healthy, it would be a real blow to aspects of the economy.
Less car driving - less $$ for gas stations, auto repair shops, car dealers, tax revenue from this list, registration fees.
Less pollution - oxygen companies suffer, along with your house requiring less painting, etc.
Economic benefit is in the eye of the non-cycler!!