There is no binary answer to that question. Your quality of life will depend on many factors, your job being one of them. It's best to study a subject which interests you. Unless aiming for a technical STEM career or quant work in the financial markets, your don't have to relate your degree subject directly to a career path. For example, you can qualify as a lawyer with a degree in any subject, and you can work in financial services without a degree in maths, economics, business, finance etc.