Opportunity cost considerations
Benjamin Franklin said that time was money. You could have earned ten shillings today, but you spent half of it sitting idle. You only got five shillings for the half-day you did work. To Franklin, you spent (or threw away) the other five shillings in front of the television. Suppose we talk about ten thousand dollars instead. You would likely save a child’s life by donating ten thousand dollars worth of mosquito nets. Have you spent (or thrown away) that child’s life by not fighting for a raise? Or upgrading a good car for a newer model?