Hello @valchiz. You make some valid points in your article about a person has to be sellable. Yes, you are correct that no everyone can sell themselves. The majority of individuals don't have the resources to hire professional advertisers or public relations firms. They have to sell themselves.
When I clicked on your source link for the image in your post, it took me to a site called Inc.com. Are the images from this site free for your to use in your blog for commercial purposes?
Also, the original source of the image looks like it came from Getty Images, which is of course a paid site. Is this your understanding?
Thanks for sharing your article.
Take care, and have a good day.