In Chapter 4 of Lord of the Flies, who "still felt the unease of wrongdoing" and who was affected by the "taboo of the old life?"

After Roger destroys the sand castles of the Littluns, it is Maurice that feels something about the "unease of wrongdoing" and runs off into the woods, feeling uncomfortable about what they've done.  He doesn't like what they've done and his guilt makes him ashamed.

But Roger sticks around, not really feeling too bad about what he's done.  He is the one that begins to feel some pleasure about doing things the young kids don't like or hurting them, but he feels some "taboo of the old life" and it prevents him from actually hitting the boys with the rocks he is throwing.