Trust/faith

For me, there is a huge trust issue when reading modern textbooks. Does a particular line represent the authors personal experience? Or that of another author who used the method in question?

Or does it represent an effort to make a better looking book by an academic with no clinical experience and low ethical standards, whose salary grade depends on getting this book published? (or even worse, a student of the above academic?)

From what I've seen, the Chinese book market is FLOODED with books published in the latter situation.