You can have all the pace in the world. It doesn't matter if you can't keep the car between the white lines.
Monaco 2004, lap 44. Juan Pablo Montoya was hunting down Jarno Trulli for the lead when he tagged the inside wall at the swimming pool chicane. The contact didn't break the car. It broke his concentration. He hit the wall again three laps later, harder this time, and retired.
Twenty-two years later, Kimi Antonelli just did the same thing at Miami — except his barrier was painted white on the asphalt, and instead of DNF-ing, he collected a five-second penalty that dropped him from third to sixth.