I imagine every Christian has wondered why God allows atheist and evil people to materially prosper – Even as many Christians struggle financially. It is apparently an age-old question going back at least to the writer of Psalm 10. He seems to think that they are so spiritually poor that the riches never really satisfy them, yet it becomes their main pursuit.
Jesus said to lay up our treasure in heaven, not here in this life where it will decay away (Matthew 6:19-21). God will settle the accounts in the end (1 Thessalonians 1:3-10). Trust that if we concentrate on God’s work, the rest will take care of itself. (Matthew 6:25-33)