Temporarily taking the post’s theory as given, then speculating: managers a few levels above the bottom won’t feel much dominance increase from hires at the bottom if they’re too organizationally distant for it to register, I’d think; the feeling boost from Nth-level reports would drop sharply with increasing N due to less personal contact. They would then seek to manipulate their set of direct reports. Some would see internal underlings as a threat, want to get them out of the way, and not necessarily have another insider suitable to displace them with. Some would see outsiders with external status markers (intelligence, high-profile accomplishments) whom they can gain indirect status by hiring directly. Some might be obstructed directly from engaging internal promotions or get outcompeted for the internal pool.
Temporarily taking the post’s theory as given, then speculating: managers a few levels above the bottom won’t feel much dominance increase from hires at the bottom if they’re too organizationally distant for it to register, I’d think; the feeling boost from Nth-level reports would drop sharply with increasing N due to less personal contact. They would then seek to manipulate their set of direct reports. Some would see internal underlings as a threat, want to get them out of the way, and not necessarily have another insider suitable to displace them with. Some would see outsiders with external status markers (intelligence, high-profile accomplishments) whom they can gain indirect status by hiring directly. Some might be obstructed directly from engaging internal promotions or get outcompeted for the internal pool.