Earlier quoted context omitted.
Some people lie like they breathe, it’s automatic, and doesn’t have any meaning. It’s not meant to be malicious.
Does the intent really matter?
Lies, similarly, are fundamentally destructive - a lie is a piece of invalid data that corrupts, to smaller or greater extent, the minds of everyone who come in contact with it. Incorporating a lie in your reasoning moves you further from accurately perceiving reality. Sometimes, very rarely, a lie may be justified - the best of available options, even accounting for second-order effects. Usually, it isn't. But it matters whether the lie was accidental, good-faith, attempt at poisoning someone's mind, or wanton disregard for peoples' ability to grasp reality.