I don't think it's that simple. Work harder get promoted. Don't work hard don't get promoted.
A lot of the managers in our place are very good at playing corporate politics. They spend more time at that than actually working. At least 50% of them are utterly abysmal workers. They avoided any difficult or time consuming work before they were managers. Which explains why so many are abysmal managers. The best managers (not always) usually have a good background in their domain.
I doubt any of makes a difference once they get older. They'll hit the same ageism hurdles.
Good workers do not make good managers...
it all depends on the "type" of manager they want to be, some of the best managers I've had are non technical managing a technical team.
Some managers that "think" that they can do your job can end up threaten or trying to micro-manage.
A lot of "managers" and "leaders" could do with training, rather than be the most experinced person or the person who's been here the longest..
casing point, I used to work with someone who boasted "I have 15 years of experince"...
dude did the same thing for the last 15 years, there was a young chap who's CV didn't match is age in the team as well, so I wouldn't say that his skills were deep but just wide. Both left the company at somepoint, the person with the 15 years of experince ended up doing the same thing for another company and still does the same thing 15 years later, while the young lad is now a server engineer.
"management" roles are a moot point anyway, I have been in positions where I get paid more than my managers, as the role I perform in the company is valued higher than my managers role.
Job titles vary across companies, heck I seen some of the pay offers for "IT managers" or "IT directors" at some companies and they are offering a lot less than I'm on as the dancing monkey, while my managers can grind the organ in the background.
Your as only as valuable as a company is willing to pay for your services, as long as you are willing to test yourself and not to scared to grab the opportunities..
it just seems on paper for some reason that their is a drop in the average salary once a person hits 50, and I started this thread to hear what happen to some people that have experinced this salary drop.