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Intelligence can help aggregate basic success, such as securing a stable job, but its influence diminishes after reaching certain income thresholds—around €60,000 according to a Swedish study. At that point, other factors, including luck, privilege, and opportunity, become more significant in determining financial success.
For example, individuals from wealthy backgrounds often enjoy advantages that those from less privileged circumstances cannot access, such as better education and job stability. In contrast, those born in economically challenged regions may face considerable obstacles, regardless of their talent or drive.