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