If you write a software program for a client, you get paid. If a actor works for a day on a TV show he may get cheques forever.
If you hire a photographer for a wedding, you will pay him the same rate as a contract developer. But you won't own the rights to the photos and keep having to pay the guy if you want copies.
I can understand the owner of the TV show or owner of a song charging for commercial use, in the same way if you work for Gmail Google will sell the product forever.
Gmail developers past and present don't get cheques every year.
I've never understood the Arts and royalties.
If you write a software program for a client, you get paid. If a actor works for a day on a TV show he may get cheques forever.
If you hire a photographer for a wedding, you will pay him the same rate as a contract developer. But you won't own the rights to the photos and keep having to pay the guy if you want copies.
I can understand the owner of the TV show or owner of a song charging for commercial use, in the same way if you work for Gmail Google will sell the product forever.
Gmail developers past and present don't get cheques every year.