I was thinking utilities in terms of electricity, gas, water or sewer.
In the case of electricity (etc.) there's an actual amount of work that goes into each KWh and that's what you pay for. With internet, there's just the upfront cost of connecting a router and paying a sysadmin team to support it; after that, operating it is a flat cost no matter how many packets pass through it.
You have to dig fibers at some point - at a cost of ~$15-100 per meter.
Feel free to join my "unmetered" internet. I've connected my routers via 56k lines to eachother, but we never even throttle a single customer. Of course given the chances of even a single packet ever reaching it's destination are so low you probably shouldn't even bother connecting to the network at all ...