Are people who aren't interested in earning lots of money more likely to be happy than others?

I'd say money helps but can't buy happiness - it removes stress up to a point, but beyond that, relationships and balance matter more. For example, my high school math teacher Mr. Wang wasn't wealthy, but he seemed genuinely content because he loved teaching and had strong family ties. That said, in Shanghai where I live now, financial pressures are real - you do need enough to cover basics like housing and healthcare. The key is finding that threshold where money stops being the main source of stress, then focusing on other meaningful aspects of life.