Approval of a new policy requires government to recognize that a problem needs solving, and the approval of the elected branches of government. This process can take a long time.
Need-based programs exist to provide at least a minimal standard of living for those in dire straits and to provide opportunities to improve their fate in life. In the short term, they allow mere survival, while in the long term, they can help the individual and society.
A Keynesian approach would recommend deficit spending to stimulate the economy. Supply-side economists would advocate cutting taxes to get more money flowing in the economy.