Why do you bring up the authors like they're the primary ones being harmed? Most aren't making money to begin with because they get such a small piece of the pie. A typical contract might see them get 20-40% of the cut if they do the distribution and marketing themselves. The vast majority of authors are not professional writers as a result, it's just a side gig on top of other jobs. Authors also can't set their own prices (publishers and marketplaces have a big say) and depending on the terms, they may not get any meaningful royalties. This is common in academic publishing for example.