As whymauri has illustrated, there's a ton of pettiness that goes on between tenured professors and outside of anything to do with the tenure process. It's nothing but people with big egos being a small fish in a small pond and then stomping around like toddlers to make sure everybody knows they are there.
I still have memories of wanting to tell some of my tenured professors that they needed to grow up and find bigger things to cry about. I was in my 20s, they were all 40+.
At least IME, the younger non-tenured professors were less likely to engage in this pettiness because they had, as you have pointed out, a lot more to lose.
I mean the perceived viciousness mostly stems from power imbalance (when it’s between tenured and untenured) and having a lot to lose. Two tenured assholes clashing is at best unpleasant.
I still have memories of wanting to tell some of my tenured professors that they needed to grow up and find bigger things to cry about. I was in my 20s, they were all 40+.
At least IME, the younger non-tenured professors were less likely to engage in this pettiness because they had, as you have pointed out, a lot more to lose.