The greatest contribution God put the church to make in our nation towards national development is to raise Christ-like disciples. That's all we need when we talk of seeing our nation change and transformed. If every born-again Christian in the world lives like Christ lived, the world would be a better place.
All the revivals and the transformations we've been praying for, would be a reality if we just had the right people with the right orientation, who would live like Christ, speak like Christ and behave like Christ across society's landscape. Wherever you'd plant them, they would be agents of transformation.
But it would amount to daydreaming for Christians to pray and fast, believing God that unbelievers in power, would bring the desired change in the world. You cannot give what you don't have. All we need are the right people, agents of transformation, in the right places.
Follow him and do what he teaches