 Since CEA weighs benefits against costs, it is natural to ask whether benefits should be restricted to health benefits alone, or should include other, more indirect benefits such as the economic benefit to the individual from returning to work or the financial benefits to employers from reducing lost work time due to employee illness (Brock 2003). Economists would favor the broader conception of benefit since it provides a better calculation of the societal value of a health care prioritization scheme. More finely-gained benefit assessment would also allow us to make more ethically sensitive judgments about where money should be spent: e.g., it would be ethically justifiable to favor the health of mothers of children who need their care. On the other side, not only is it extremely difficult to quantify these benefits, it has also been argued that it is unfair to prioritize health care resources to favor patients whose improved health has greater indirect benefits to themselves or society since that is to treat people and their health as means to social ends. Economic or other benefits and health improvements are in “separate spheres” and merging them will make our health prioritization strategy both ethically compromised, and practically unworkable (Brock 2003).