A royalty system is almost in direct opposition to what the FSF has accomplished. In fact, the entire body of work that the FSF has done has been to ensure that

A royalty system is almost in direct opposition to what the FSF has accomplished. In fact, the entire body of work that the FSF has done has been to ensure that users of software have the same rights as developers of that software. As far as execs with jets, starving developers, etc... well, the music industry and book industry have royalties and last I looked, the execs did better than most practicing musicians and authors.