Free Software as a concept could not exist without copyright. Copyright is what allows the license to declare the terms under which a copy is permitted, including the provision that the source code ship with the binary form. (This is discussed in the commentary to the GPL.)

Despite the SaaS model under which many of us build, there is still a tremendous amount of packaged and distributed software that people use every day: your phone and its OS and apps, most computer OSes, databases, medical records, transportation, communications—the list goes on—that many of us work on to put food on the table.