Equivalence?
What is equivalence?
It's hard to define the word.
The most obvious example, for a person like Lawless, was that friends and family were priceless. He would never exchange his friends and family for anything else. Instead, one would have to worry whether or not Lawless would beat the hell out of their brains after asking him to exchange his friends and family.
However, Broker was different.
As long as he could get benefits from it, he would exchange anything.
As for feelings?
What a joke, that cunning bastard must have traded his feelings for other things of the same value.
Kieran would also be glad to exchange, but unlike Broker, he knew what he could exchange and what he couldn't, similar to how he could never hurt Starbeck and Lawless because both of them treated him with the utmost sincerity.