ISPs and wireless carriers are the most profitable companies in the USA all with 60% gross profit margin if you look and any of the financials.
When my friend was younger he worked for a cable company, where he did installs. He said the capital costs were usually covered in the first month of service, and everything was gravy after that.
So. What if in another country instead of extracting the profit, they put 5% of it back into the infrastructure. I suspect you would have what a lot of europeans have - fast internet. And what if you didn't take as much profit? You would have the other thing europeans have, cheap internet.
I mean, I like capitalism. It works! But I think there are some things that are out of whack.