Why do you think God decides to bless some people with financial blessings, above and beyond their needs and wants, and other Christians have to continually struggle?!
I don't accept the explanation that God does it just because, or because He is God. Surely there must be some reason for it. Also, are Christians who have a lot of money aware of how discouraging it is for those of us who have to struggle, when they share about the abundant financial blessings that God has bestowed on them?!