I disagree with this, at least in how it regards ego as pointless.
Humans are tuned to win a delicate social competition by becoming popular and therefore having a bunch of kids with other popular (and therefore reproductively successful) people. The most plausible explanation is that our ancestors have been through millions of years of evolutionary selection to try to become the most popular in a social group by taking risks, but then cease all risk-taking and guard their position after they get there.
Ego is the mechanism by which this happens, but it's there for a reason. Social status is really, really important - if you don't buy the evolutionary reasons, it's still important for basic human connection. We haven't always lived in societies which are so open to failure, experimentation, or looking stupid.
I'll leave it at that because I don't want to write a novel. But when I look at your description, I don't see any plausibility at all. I only see projections. Like in The Flintstones or in old movies about Stone Age people, who have strangely short haircuts and go hunting the way people go to work today. What I mean is: the social dynamics you're assuming here may be primarily shaped by your experiences in the present and are far from as universal as you believe.
BTW, the Flintstones is just The Honeymooners without Jackie Gleason. One could also argue that Family Guy and The Simpsons are also reboots of The Honeymooners.
> who have strangely short haircuts and go hunting the way people go to work today
"They're the modern stone age family" are the words in the Flintstones' theme song.
I take your point, and I too get triggered when people invoke mate selection and dopamine. I could be with you in being skeptical about that specific angle... but absolutely if you look at lawless or less institutionalized cultures, there is a trend towards appearing strong/tough and hiding any weaknesses
Also finding a partner is mostly about being silly with each other. So looking a bit stupid is a plus there and had no issues about it on that front
Frankly, I have no idea how to explain it in words, but when you’re in a setting where everyone knows they’re good at their own thing, but also know the others are also exceptional at their thing, this game goes away. Like it actually becomes the opposite. Everyone calls themselves stupid, become more cordial, and things get fun. Trying to not to look stupid signals negative status, or whatever you call it.
It’s very funny to write this out, because I’ve never thought about it on purpose. Everything has just felt natural at the time of the event.
You dont want to do dumb things that might get you in jail and have rveryone shun you.
But should u be so afraid of brusing your ego that you shy away from: starting a business (if u have the financial means), asking someone out, publishing something in public, etc
Sometimes evolution overshoots, esp when our environment changes
In my case, and I suppose this holds true for others, too, the "fiercest" competition is with one's inner-self or, at the very most, with past/dead/way-out-of-line-of-sight "competitors" that have nothing to do with current society and its recognition. I know that this "competing against one-self" sounds trite, but, again, this is how things are for some of us.