An excerpt from The Economist:
As such provisions have grown in popularity, two things have happened. First, the list of misdeeds covered has lengthened. What initially applied solely to criminal financial conduct now extends to almost anything that might damage a firm's reputation. That includes creating a toxic corporate culture, sexual harassment and “inappropriate” personal relationships; cupping backsides is taken as seriously as cooking books.
How to understand the bold text? Why does it fit into the context: cupping therapy and cooking books?