" even an ideal set of trade-offs must—and should—leave a whole spectrum of unmet needs, because the cost of wiping out the last vestige of any problem is leaving other problems in more dire condition. In short, trade-offs must be incremental rather than categorical, if limited resources are to produce optimal results in any social system as a whole. "

― Thomas Sowell , The Vision of the Anointed: Self-Congratulation as a Basis for Social Policy