IDK that I'd expect KP to take a pay cut to stay, it'd be great if he did, and I hope KP is the next Knights Captain to raise the trophy, but if PNG (or even the Roosters) drive a dump truck of money up to his house *, then good luck to him. They only have a short time to get that cash, and many of them have ongoing issues when it's all over. Trophies are great, and loyalty is grand, but they don't pay the bills when your career is over.
* Issues with the salary cap notwithstanding, I wouldn't be the only fan who believes that some clubs are hugely advantaged over others.
** Recent injury history may be a factor in KP's market value, but that probably won't deter PNG.