The license shall not restrict any party from selling or giving away the software as a component of an aggregate software distribution containing programs from several different sources. The license shall not require a royalty or other fee for such sale.
Paradoxically (or not), restrictions on selling software is a fundamental violation of freedom. When the OSS movement says free, it means freedom as in free to do what you want, not free as in free beer. Of course, that freedom also includes the freedom to give it away.
So in practice, that usually results in exactly what you lament: free software with a business model on top to support its development and pay programmers so they can eat.