It is a very sad and unfortunate situation. We live in different times now where we have access to a wealth of knowledge at the click of google. It is easy for us to judge people but in all honesty not all people are lucky like our generation.
We can literally log online and learn about anything. Putting myself in this woman's shoes she probably grew up in a time when there was not that much knowledge of health out there (and if you wanted it you'd have to walk to a library, research the book, and read it). She was ruled by CW.
We can only hope that the great knowledge we know about health and exercise gets passed to as many people as possible.