Genesis 47

 It is uncertain how much power Pharaoh had before the famine, but with Joseph's help by the time the famine was over Pharaoh had complete control over the entire region. Now Pharaoh had a legitimate claim to the 20% tax on the land. Joseph gave Pharaoh this right not by the power of the sword but by buying all they had and then giving them food when they had nothing. 

Not only did Joseph feed them but Joseph also prepared for the end of the famine. Joseph gave them seed when the famine was over so they could start again. This is where I feel the church and society in the West fail. We help people when they are starving (in need) but we don't prepare them for restarting life again after the tragedy. So this is something we need to consider. It also for most of us requires a greater degree of wisdom. Unlike Joseph whose people live in an agrarian society and giving them seed is all that is needed, we face situations where different things are needed and we shouldn't be too quick to assume what should take place. We should both ask and pray. Something to think about.