According to Graeme Simsion in "The Rosie Effect," once individuals meet their fundamental physical needs, their happiness tends to rely less on their financial status. This suggests that having enough resources for survival is crucial, but beyond that point, wealth does not significantly contribute to overall well-being.

Instead, the author emphasizes the importance of having a meaningful job. Engaging in work that provides fulfillment and purpose can be far more impactful on one's happiness than the accumulation of wealth, highlighting that job satisfaction plays a critical role in a person's emotional and psychological well-being.