Why? Sure, patio11 himself benefits from the software, indirectly, when he pays himself salary. And the software he uses, in part, helps ensure that salary. However, the company &quot;needs&quot; the software more. If the project shuttered tomorrow, that would be an existential threat to Appointment Reminder (patio11&#x27;s business) but wouldn&#x27;t be such a threat to Patrick.<p>There is also the tax benefit. A 1000 dollar donation (or software license purchase) would only be ~700 assuming that Patrick still wanted to make the same donation with the same effect on his personal spending power.