It's not just business - it's basically a monopoly. Enough to extract rent while providing a minimal service.

Imagine if all streets were owned by two large companies who charged you enough to use them that you'd be paying as much in fees as you are in paying for gas. People would still use cars. The streets could be in horrible condition, the two companies would be making an insane amount of profit, but there would still be people out there saying that if it wasn't for those companies we wouldn't be getting anywhere and it's just business.