Why God Himself need to come into this world?

Emperor Akbar was enjoying a boat ride along with Tansen. Akbar asked a profound question to Tansen. He asked him "Why God should descend in human form on the earth to save the people? He could have deputed somebody else to achieve that aim. Tansen thought about the question and asked for two days time to answer the doubt of the emperor. After two days, again during a boat raid, he cleverly made a doll which was an exact replica of the Prince. He cleverly arranged to throw the doll in the water through some means and started shouting: "Oh the prince has fell in the lake!. Upon hearing this, the emperor himself jumped into the lake to save the prince. Finding that only a doll resembling the prince has fell in the lake, he got angry and asked Tansen for the reason for such act. Tansen politely replied, Oh Badusha! Two days back you asked me the reason for God himself to descend in the earth to save the mankind. I would like to know, when there are so many attendants on the boat, why you have jumped in the lake? Akbar replied it is the Prince who has fallen down. How i can remain as a mute witness? Hence considering the urgency, i jumped in the lake. Tansen replied, Oh emperor! That is the reason for God to incarnate in this Universe, when He find that His own people are in peril. Akbar saw reason and presented Tansen with a fitting presentation.