Wealth can indeed be God-given wealth. Such wealth is that which is given by God according to His timing, His conditions and His willing alone. It is not deserved because everything that humans have is from God, whether they acknowledge it or not. All things were made by him; and without him was not any thing made that was made (John 1:3). Each breath we take is only by the grace of God. None of us humans deserve life, let alone anything else including our basic meals, or riches. God's providence, whether in wealth or poverty is by grace alone - it is undeserved and given entirely on His terms alone.
The thief cometh not, but for to steal, and to kill, and to destroy: I am come that they might have life, and that they might have it more abundantly" (John 10:10).