B-1/B-2 Visa

We requested a reconsideration of a B-1/B-2 visa denial by a US Consulate in India. The applicant and his wife applied for visa to visit their son in the U.S. The wife was granted a 10 year multiple entry visa, but the husband's application was denied based on Section 214(b) of the Immigration and Nationality Act (possible immigrant). This obviously made no sense. Why would one of the husband-wife applicants be denied while the other one granted the visa?  We requested reconsideration, fully explaining the circumstances in his favor and providing further proof.