Z:gnu-www-ja-rieti--8c96cb-Well, of all the employment in/en

Well, of all the employment in the field, a small fraction is programming; and most programming is custom software, software being written for one client. That is perfectly okay; as long as the client gets the source code and gets the full rights to control the software once he has paid for it, then this is legitimate. In fact, it is free software for the client who has it. [Thus, only the programming which is not client-specific is really nonfree.]