I would argue that lies are inevitable, but in a modern society with somewhat democratized messaging, it is harder to keep them in a "saintly", foundational status.
State religions and state ideologies such as North Korean juche were easier to maintain in the pre-Internet era.
Nowadays, nonsense will get called out by people who aren't official "opinion makers". Which makes it harder to get some collection of lies established as orthodoxy, much less for generations.
Yes. In other words, it's hard to impose a Tyranny on a society if Free Speech is allowed. Tyranny requires control over speech, to brainwash people into the belief that the Tyrants are "good for them", and so the first thing any Tyrannical Gov't wants to do is control speech.
State religions and state ideologies such as North Korean juche were easier to maintain in the pre-Internet era.
Nowadays, nonsense will get called out by people who aren't official "opinion makers". Which makes it harder to get some collection of lies established as orthodoxy, much less for generations.