Why is my husband the villain?

Yu Wei transmigrated into a book. Good news: He became the young master of a wealthy family, with billions in assets to inherit. Bad news: He was the older brother of a malicious beta cannon fodder. Soon, with the protagonist's line, "Daybreak, it's time for the Yu family to go bankrupt," three generations of hard work would be destroyed in an instant. The Yu family would be burdened with debt, begging on the streets, and dying in the gutter. In his previous life, Yu Wei worked from six in the morning to nine at night for a salary of three thousand yuan, dying from overwork on the job. He had had enough of a hard life. In this life, he would protect the Yu family and save his cannon fodde...