* Lots of people aren't prepared to make the level of change required and so medication can be a better option; and
* Medication will probably reduce risk a lot faster than lifestyle adjustment if things are already dire.
Not really although it can certainly help. There is evidence that there is a profound change (infection of some sort) in the Kidney and at some point that causes a run away inflammatory response that leads to Hypertension, it is an autoimmune condition that is extremely difficult to manage or get rid of. They believe it may be responsible for a great deal of Essential hypertension in adults today.
fix I'm not so sure, but help, that is true.
I have hypertension myself, it's been in my family for generations, it's a moderate hypertension, but no kind of diet could lower it.
Drugs did in a very short amount of time and they are both cheap and had no consequences whatsoever.