Being charged with being an ignoramus is no compliment. However, some ignorance is virtuous. One should cultivate being an ignoramus in a few areas.
First, curiosity is often a sin. For example, you do not need to see the person lying on the side of the road being attended to by first responders. It is none of your business. Use the golden rule: Would you want people staring at you if you were in that condition? You can look away, but be sure to pray.
Second, you should be ignorant about what is in the realm of others’ privacy. There is no need to know, so you should not know. “Thou shalt not covet anything of thy neighbor’s (that you don’t need to know).” One’s medical history should not be public knowledge. Only God can know everything virtuously since he is perfect.
Third, it is not virtuous to know or make known unflattering, but irrelevant, matters about others. That is gossip, a serious sin in the New Testament. Think of how much of American popular culture feeds on and starves without gossip. What dysfunctional, idiotic, or criminal things have this or that celebrity done now? You should not want to know. You may know too much. Try to forget in order to make more room for virtuous knowledge.
I give the Apostle Paul the last word: “I want you to be wise about what is good, and innocent about what is evil” (Romans 16:19). Amen.