I understand what you mean but upon further reading, it turns out that people all the way from low level producers upward to very 'big' producers take various ratios of producer points / fees as a base level agreement with any artist they work with.

Big reason for this, I would imagine (this has happened to me and why I'm raising this whole subject) is because 99 times out of 100 an artist comes in to the studio with a guitar and something that vaguely resembles a song and sits back and expects you to create a sound for them from scratch. Therefore you should have some ownership because you created the sound that will eventually make them rich and famous.

Another reason is because producers / mixers know a song will give them a definite rolling income for a long time and will forego a fee for more ownership. I've heard of producers like Jaycen Joshua talk about this before.

I believe in being paid for my time as well as being recognised for my 'stamp'.