> But changing human nature is a tough task.
It is up to each of us to self-reflect and then make the effort to self-evolve. The key to this is doing so for the benefit/happiness of others.
> There are dark fiction stories about societies with forced honesty
Of course. a) It's fiction, b) We must choose to be honest and then make the effort to both know the truth and manifest the truth in not just what we say but what we do.
And, everyone should know that the worst lies are those we tell ourselves, thus the deeeeeep wisdom of "Know thyself." It is the essential foundation for aiming the compass towards a better path.