If you are in your 40ies not having lost a hair you are having high estrogen levels. You will have feminine facial features and appearance, that will just anoy everybody.
Just creepy, in a plastic surgery, botox filled trophy wife faces kind of way.
Bullshit.
Every single old guy I know with thick hair looks the most masculine. Strong jawline, strong beard etc.
Epic failed attempt at marginalizing your superiors.