The fictitious story created by Penny Lea titled "Sing a Little Louder" illustrates the problem:

"I lived in Germany during the Nazi holocaust. I considered my-self a Christian.  I attended Church since I was a small boy.  We had heard the stories of what was happening to the Jews, but like most people today in this country, we tried to distance ourselves from the reality of what was really taking place.  What could anyone do to stop it? A railroad track ran behind our small church, and each Sunday morning we would hear the whistle from the distance and then the clacking of the wheels moving over the track.  We became disturbed when one Sunday we noticed cries coming from the train as it passed by. We grimly realized that the train was carrying Jews.  They were like cattle in those cars! Week after week that train whistle would blow. We would dread to hear the sound of those old wheels because we knew that the Jews would begin to cry to us as they passed our church. It was so terribly disturbing!  We could do nothing to help these poor miserable people, yet their screams tormented us. We knew exactly at what time that whistle would blow, and we decided the only way to keep from being so disturbed by the cries was to start singing our hymns.  By the time the train came rumbling past the church yard, we were singing at the top of our voices.  If some of the screams reached our ears, we'd just sing a little louder until we could hear them no more. Years passed and no one talks about it much anymore, but I still hear that train whistle in my sleep.  I can still hear them crying out for help.  God forgive all of us who called ourselves Christians, yet did nothing to intervene."

God speaks of this inversion in priorities through the prophet Isaiah: "The multitude of your sacrifices— what are they to me?" says the LORD. "I have more than enough of burnt offerings, of rams and the fat of fattened animals; I have no pleasure in the blood of bulls and lambs and goats. When you come to appear before me, who has asked this of you, this trampling of my courts? Stop bringing meaningless offerings! Your incense is detestable to me. New Moons, Sabbaths and convocations— I cannot bear your evil assemblies. Your New Moon feasts and your appointed festivals I hate with all my being. They have become a burden to me; I am weary of bearing them. When you spread out your hands in prayer, I will hide my eyes from you; even if you offer many prayers, I will not listen. Your hands are full of blood; wash and make yourselves clean. Take your evil deeds out of my sight! Stop doing wrong, learn to do right! Seek justice, encourage the oppressed. Defend the cause of the fatherless, plead the case of the widow. “(Isaiah 1.11-17)

And we find in the book of Amos:

"I hate, I despise your religious festivals; I cannot stand your assemblies. Even though you bring me burnt offerings and grain offerings, I will not accept them. Though you bring choice fellowship offerings, I will have no regard for them. Away with the noise of your songs! I will not listen to the music of your harps. But let justice roll on like a river, righteousness like a never-failing stream! “(Amos 5.21-24)