It’s not a cynical thing to say, it’s an established fact. Most people tell lies at some point in their life. Many do it for a number of benign reasons, such as trying to make a point, trying to make a joke, or trying to spare someone’s feelings. Others do it for less savory reasons, such as trying to cover their butt.
Most folks, however, don’t lie maliciously. They don’t lie to hurt other people.