This. I've literally been dealing with one of these muppets today, and it absolutely is an affliction of the pale, male and stale. Its very frustrating for those of us who have worked long and hard to get where we are.
I've been working more than 30 years and had some dreadful shitty jobs at the beginning, but particularly in the last 10, I've been really focused on picking up NED positions, broadening my experience alongside the day job through volunteering and networking, and adding to my doctoral level qualifications to get the the highest level of professional recognition. This means that I can now command a day rate of about 2k.
People who say, "focus on what you find easy and others are impressed with" are absolutely right, as are those who say you should move around, to get experience and to move up the ladder. A lot of my work is now easy, and I can produce it quicker than people would expect, partly from breadth of experience and partly from playing to my strengths.
I'm now living what others would consider a cushy life, work comes from recommendations, I don't have to hustle and people seek me out, the foundations I put in place mean I find it fairly easy, and no one blinks when I charge them an absolute fortune for my time. As a result I only work a couple of days a week, but getting here wasn't cushy, in 10 years I probably worked about 20 years of hours....