" To say that merit may be the same is not to say that productivity is the same. Nor can we logically or morally ignore the discrepancy in the relative urgency of those who want their shoes repaired versus those in need of brain surgery. In other words, it is not a question of simply weighing the interest of one income recipient versus the interest of another income recipient, while ignoring the vastly larger number of other people whose well-being depends on what these individuals produce. If "

― Thomas Sowell , The Thomas Sowell Reader