Self delusion.

The "I don't need lies to cope with reality" sayers, are usually the biggest self-deluders

It's a good notion to not need lies, but man, if you've never run into a truth that you needed all the worlds delusions to cope, then you haven't lived yet, and you're bound to run into a surprise about yourself down the road.

Still, we need to massively minimize self-delusion. It's a good hearted pursuit it's just that the afore mentioned people go at it with the autistic idea of self-perfection (I know, I chased that dragon)