The thing is that you're largely talking about people who have influenced culture, whereas the article seems to define "culture heroes" as people with name recognition across society (presumably including across ages, regions, religions, politics, etc). Not super clear but I read it as "in the US" since language barriers make it very clear that the median culture is very much on the other side of the globe.
I don't think any of those people other than the former (two) US presidents cut the mustard. They might have changed culture, but they're not "heroes" in the "icon" sense.
For cultural icons that everyone across society recognizes, for better and worse I have to imagine those ridiculous segments where they go around and interview random people to ask them who people who I think are comically well known are only to find that people don't know who like Kamala Harris is. Terrifying, but that's what I think the OP was getting at.
Who else might I add? Who would a 15 year old from Chicago recognize as well as a 73 year old in Tallahassee?
Robin Williams maybe? Literally Mickey Mouse? Payton Manning? Elon Musk?
I know I'm out of touch, but I didn't recognize the name for Joe Rogan, Sam Altman, David Goggins, or Jordan Peterson. I have no doubt they have impacted my life, I've even studied karate for over a decade and had friends training MMA and BJJ in class with me; Joe Rogan himself never came up though so while it's awesome that culture now includes MMA and BJJ, Joe Rogan himself is not a culture hero by this classification.