How do you estimate the monetary value of a human life? What is the benefit of undertaking something that saves one human life per year? Do you calculate an average income over an average lifetime?

Do you estimate average future contribution to a country’s GDP?

Do you calculate the average investment that the country has put into a person? Do you use insurance industry figures? Is a rich person worth more than a poor person? Is a lecturer worth more than a student? Is an educated person worth more than an uneducated one? Does your mother think that you are priceless, but everyone else thinks that you are worthless? Is there any rationality in any approach adopted?