Is IQ tied to wealth?

Are there any studies that have definitively linked intelligence quotient, or IQ, to wealth accumulation? Could it be argued that those with higher IQs have a natural advantage in building wealth, due to their ability to grasp complex financial concepts and make informed decisions? Or are there other factors, such as education, work ethic, and access to opportunities, that play a larger role in determining one's financial success? What are some of the limitations of using IQ as a predictor of wealth, and are there any ethical considerations to be mindful of when discussing this topic?