Personally I think very few people could handle a "flip of the switch" from living calm lives where people lie to them, to going to a world where only truth can be spoken (and MUST be spoken apparently?). Likely it would result in the whole economic system collapsing over a period of days. You think harassment at the work place is a big issue today? Try a day in a world where you can't lie.
Hey beautiful, I want to fuck your ass. I didn't listen to what you asked because I was busy imagining [explicit act].
Hey, I seriously hate your face, it makes me sick to my stomach. I don't want to be near you, your smell makes me think of dead people.
Hey, I met your kids the other day when I was picking up mine at school - your kids sure are fuck-ugly evil little things.
Hey, I don't think you have anything to contribute to this discussion because your intellect is extremely limited.
Hey, mr Customer, you should absolutely not buy this product right now because our competitor has a better offer.
Hey, mr person calling support, I don't really care about anything you have to say and most likely you are just too stupid to use our product.
I wouldn't be surprised at all if places like stock exchanges developed means of communicating where any conversation from person X to person Y was first screened for "ugly truths" before the message was sent on. A sort of desperately needed self-blinding.