The individuals who get rich from copyright are a rarity.
Most mid-list authors make very little from copyright. A lot of the "authors" who make a lot of money from writing are celebs who slap their name on a ghost written work.
> Which was always better for them than let Twitch take 70% and be a sharecropper.
Copyright predates Twitch or giant corporations and was designed to protect the profits of the publishers from the start.