The problem with this hypothesis is that the folks who have done life and COULD be viable influencers often don’t have or don’t want to spend their time making “content” for the internet. Usually, if they’re at all inclined to share their experiences they do something like, um, write a book.
Bearing this in mind, there’s a great opportunity for people who are good documentarians (is that a word) and assistants to seek out and help people who should be influencers, but probably currently aren’t.
Interesting angle. The world of today is sure interesting, right?