Maturity is knowing when being technically correct would still be socially foolish.

You can be entirely right and still make everything worse by saying so. The correction in front of others, the technicality that wins the point and loses the person. Accuracy is one consideration among several, and it does not automatically outrank the rest.

Before correcting someone, ask what it will actually achieve. If the answer is only that the record will be straight, consider whether the record needed straightening. Some accuracy is better delivered privately, later, or not at all.