Does the change of hypertension guidelines actually affect our reality?

The advantage of the modern era is that doctors nowadays all over the world have the opportunity to diagnose disease and treat it under the same conditions. Unfortunately, not all diagnostic tools and treatment options are available worldwide, but at least there is some common frame that doctors should follow in wide range of disease. Guidelines are updated regularly and it is always expected that new recommendations will resolve the most of issues from the previous. However, it often does not occur. Perhaps our expectations are too high.