Reborn in 1968: My Myriad Worlds Supply and Marketing System

Did the protagonist do something heinous? Is the whole village targeting him? Why does he insist on waiting a while, hiding the item, and only doing it after everyone has left, when he could have done it with a single thought?

Is the protagonist really that awful? The team leader and the educated youth all want to harm him? What bad things did the protagonist do? It's written like a post-apocalyptic survival story!