Its always going to be someone like Ben Affleck.
Ben fits the bill because:
1) there are already rumours that he wears/has worn.
2) He's a good looking guy who depends upon his looks & image for his career.

and most importantly:
3) He's rich & famous, therefore he is in an exceptionally privileged position of being able to find and afford the very latest and very best. His appearance is paramount to him and he has no restrictions.

Its not Ben that is the Holy Grail, its that he has the ability & opportunity to find the Holy Grail.

If anyone is going to have access to the latest in hair replacement, its more likely to be someone like Ben, rather than 'Joe Bloggs" from the general public.
It was only a few decades ago that whilst ordinary men were walking around with very obvious pieces on their heads, the movie industry were supplying their stars with much more advanced versions that were going undetected on and off screen.

Its that technology which has filtered down to what you're wearing today, because people were asking the same questions we are, to know what, how, who was wearing on screen.
Public demand for the pioneering movie star make-up, beauty products & cosmetic surgery is exactly what generated the stuff that is available to everyone today.

So you might not 'get it' when it comes to the Ben debate, but you are getting the benefit of it.