Monopoly? That's a bit bold of a claim.
The provider you're talking about is the utility company. You might not know why the utility company provides the internet either. It's because before that they couldn't get the other companies (AT&T, Comcast, Hughe, Verizon) to offer good speeds and reasonable rates. The utility also doesn't take a profit. Mind you, those other companies still operate and no one is holding them back. They just decided that the profit margins weren't worth it, though they did lobby against NoogaNet.
It's not a monopoly. It's a city coming together and saying
Fuck you, give us good internet or we're going to build our own internet w̶i̶t̶h̶ ̶b̶l̶a̶c̶k̶j̶a̶c̶k̶ ̶a̶n̶d̶ ̶h̶o̶o̶k̶e̶r̶s̶
And overnight all those companies increased their speeds. They found what they were happy with and NoogaNet still decided "fuck it, we're going to just be better." I really REALLY wish more people/cities would take this "fuck you, we'll do it ourselves" attitude. Waiting on others to fix our problems clearly isn't working.