When something is that drastically different, it becomes different in kind. For example, if you have high network latency, you cannot jam (play live music) with friends remotely. If you have low latency, you can. Just because the difference is in a single value (I.e. net speed) doesn’t mean it doesn’t change the fundamental nature of what’s possible. Air travel makes the kind of business, shipping, and attendance possible that wouldn’t have been possible otherwise, because our collective lifetimes and risk tolerances are limited.

That doesn't mean we should subsidise it.