We are instructed by God to expose evil works but many people have sadly taken that to mean "exploitation" of others shame and call that exposing evil works. This is normally seen heavily online when people claim the name Christian but focus solely on the downfall and "alleged" allegations of someone they don't even know and this all leads to a life of being a gossiper, a busybody and having an idle mind that is not focused on heavenly things for being too focused on the personal and private lives of others.
Exposing evil involves focusing on the Light, which is Jesus, and then evil will be exposed by default but Satan has many people focusing on his works of sin in others by getting many to take their eyes off of the cross of Christ so that they can focus on "the woman caught in adultery" so to speak and this is not becoming of a true believer of Jesus Christ.