The airline industry isn’t competitive. It’s an oligopoly. 4 companies do more than half the flights.
The reason why it’s so much easier to regulate airlines is because if you break the law with a plane the government will fucking shoot it out of the sky and you’ll be dead.
There’s consequences.
If instead you ruin a lot of innocent people financially, nothing bad happens to you.
You get millions of dollars and early retirement. As if you did everything right.