I donate a substantial portion of my salary to charity. My primary reason for doing so is because I derive utility from the feeling of contributing to the colle

I donate a substantial portion of my salary to charity. My primary reason for doing so is because I derive utility from the feeling of contributing to the collective good of humanity. Does that make my good acts and charitable contributions somehow less valuable? Moreover, the entire point of such tax incentives is to offset the additional difficulty and cost of employing challenging employees.