Ignorance is Bliss?

"In much wisdom is much grief; and he that increaseth knowledge, increaseth sorrow."

Is it fine if we live contently in this piece of land we supposedly rightfully belong, blissfully ignorant that in the past, in this very area there are bloody struggles and unjust undertakings done to make it lawfully rightful for us contemporary citizen to have?

Is it acceptable that we just live our respective civil, relatively trivial life without the knowledge that in the past, the value of humanity had become so severely degraded that brutal repressions, tortures, and massacres happened, in the pretext of creating a peaceful state we have presently arrive to?

Is it actually sounds right that you are now happily leading your life by making use of facilities and provisions readily available, that hides the ugly backroom full of corrupt plays, ruthless overthrows, and sly deceivings that are so disgustingly full of hypocrisy that they defy all the good values that you are taught all this time? 

There's a beautiful passage I have stumbled upon from the novel "The Island of the Day Before" by postmodernist semiotician Umberto Eco:

"To speak always seriously provokes irritation. To be always witty, contempt. To philosophize always, sadness. To jest always, uneasiness."

Ignorance is bliss indeed. By the price of losing our humanity, that is.