I have a suspicion.
If psychologists surveyed one of these companies, like Amazon, to look at the sorts of attachements the employees have now, and had as a child, I think you will find distinct deficit of people who had a happy childhoods with secure attachments sticking around at these companies.
The bravado and masochism so common in such places, in my opinion, is a form of self-bullying. You don't have to look hard to find managers exploiting this characteristic, and I suspect the most of the ones who thrive in such an environment do it. I worked a brief contract there and it was clear that the manager was used to making statements designed to trigger his subordinates' insecurities.
When your self worth is tied to the quality of your work, but your ability to self-evaluate is not solid. you are vulnerable to manipulation. I have that trigger too, it's just harder to hit, especially by some punk who is used to saying 'frog' and having people jump. I felt sometimes like he was waiting for me to react to some subtly passive-aggressive statement he just made and I just shrugged it off and stopped talking or kept going.
A master can be very tied to the quality of their work, and hand you your ass if you try to disagree with them. This doesn't develop overnight, and it's a winding road, but it's very undeveloped in a bunch of 25 year olds with a toxic cocktail of Impostor and Dunning-Kruger, and any 28 year old who spent more time honing their interpersonal skills in college has some ideas how to get what they want out of such people.
And those people think this is okay. Normal. That it's only what they deserve. And then we have a culture of avoiding psychotherapists, who would tell you two sessions in that this is bullshit and you shouldn't have to live this way.