The Lai family was once a rather strong family, when the Old Master Lai was still alive he was able to secure the finest things and properties for his family members. He was a respectable man and cared for his family a lot, thus he tried to make sure that his family would be able to live a decent life even if he was gone.
However, once Old Master Lai was gone, the power of the family fell into the hands of Old Madam Lai. That woman was not only arrogant but ruthless, under her teachings the children of the Lai family grew up in a distorted manner. The fact alone that one of the sons of the branch family actually dared to touch a married woman in the temple was enough to let them know what kind of teachings Old Madam Lai had given to the younger generations.
Not to mention every single upper beam of that family was now crooked!