People forget that this network isnt for everyday use. It is for use in ad-hoc scenarios where cell or even satellite coverage falls apart. The most powerful aspect is that these things are
deployable. A communication chain can be established as fast as people can move. Natural disasters are the most obvious use case, but more interesting are things like search and rescue.
Go somewhere properly remote such as the high north. There is no cell network outside of town. And the satellite coverage is spotty at best. Say you need to go look for someone. Meshtastic relays can be up and working in minutes. A chain of rescuers can spread out along a path, and remain talking to each other, as fast as they can move. Sure, radios can do this too, but long range voice radio require serious power and are still largely line-of-sight. Radio relays are an entirely other expensive thing.
Think also of remote camps (logging/planting/fishing/climbing etc). Toss a lora relay on every vehicle and every work party can talk via the app installed on their normal phones. Use GPS-enabled devices and you can passively keep track of every vehicle. Need to operate two valleys over? As the first crew deploys out they can plop down relays at key points. Years ago I setup something like this using wifi relays. It was hell. It never worked right. The range and lower power demands of lora would have been infinitely easier.