Every thing happens in Gods time, not ours.
As Christians we suffer with Christ, the death of Jesus was necessary, for it was only God himself that could pay the wage of sin for us. With out Christ's crucifixion, there would of been no hope for the rest of us.
The disobedience of men brought in disease, hunger, death, etc, So you see if we did What God Told us to Do we would have none of these things, why do people reject God, but then want him to clean up after them?
I being a Christian, still need God to clean up after the messes I created by my own disobedience, and if I have faithful to confess and repent, God also is faithful to forgive.
At Christ return, we will receive our inheritance in Christ, and that is the Kingdom of God, and there will be no more disease, destruction, or sadness, no more death.Praise Be to Him.
Does that mean we sit back and do nothing? absolutely not, We are to reach out and do what we can for the poor, the helpless, those who do not get justice, the widow, the orphaned, so where is peoples charity towards those who are less fortunate than we?
Go with God.