When there's competition to foster. Unfortunately, the pendulum has been swinging towards market concentration, duopolies, and even monopolies.
See: Health insurance industry
Also see: Internet service providers
Also also see: Publishing
See: Health insurance industry
Also see: Internet service providers
Also also see: Publishing
We need to do better on healthcare. However I think we can all agree, the complexities of healthcare are far from those of the postal service.
ISPs are constantly under threat of new players, see SpaceX. The only way they can stick around is by adding value to their products. When was the last time you couldn’t get on the internet by two or more means? Cell phone and WiFi are almost always.
Publishing in particular though, this one doesn’t hold water. At no point in history has it ever been 1) easier to publish but also 2) easier to gain a audience. Publishing is fully democratized due to permissionless platforms enabled via the internet.