Why does the living sacrifice go bad?

Jealous of Wang Cheng. The novel is the work of nine authors. According to the plot of the novel, because I was jealous of Wang Cheng, I finally went bad. Synopsis: A new bridge was built in the village, but the last pier could not be erected, so the village head invited a Feng Shui gentleman. As soon as he entered the village, he said that our village was a white tiger looking up. If you want to erect this pier, you must sacrifice it with the lives of the living.