Sorry you miss your flights a lot, but if I may, imagine you showed up on time and: A) the plane was gone and they explained you bought a ticket with an error in the flight time; or b) they informed you they cancelled your ticket and your couldn’t fly because the price of your ticket had an error.
Remember that recent viral video/news story of the Guy being dragged off a plane kicking and screaming because the airline had overbooked the flight. Airlines disclose they can overbook flights and remove passengers on such flights, usually people volunteer for freebies but no one did on this flight, they just happened to choose drag him off the plane forcefully kicking and screaming. Even when the airline had full contractual right to overbook and remove a passenger, they went about it all wrong, people still called him an asshole anyway but it was the airline that paid $140M for it.