Spotify doesn't offer an API to allow me to replace their payment system with mine where I would direct 100% of profits to artists. Because that is their revenue source.
A more interesting/valid scenario might be something like "Spotify is using their dominance in music streaming to get too much of an advantage in the podcast market". How much is too much is for the public and politicians to debate as seen here, it's a matter of pragmatism not absolute truths.
Spotify doesn't offer an API to allow me to replace their payment system with mine where I would direct 100% of profits to artists. Because that is their revenue source.