Nick had shown that he had prepared the contract in advance on purpose.
The purpose was to intimidate Irwin.
Naturally, Irwin realized that everything had been prepared beforehand and that Nick had expected him to come, asking for forgiveness.
While Irwin would be extremely loyal due to his own guilt, that didn't necessarily mean that he viewed Nick as superior.
Because of that, Nick wanted to intimidate him.
Feeling predictable equaled feeling vulnerable.
Humans put a lot of value on their free will.
Free will meant freedom and being able to make one's own choices.
However, if someone could predict everything someone else did, that feeling of power vanished.
The way Nick had spoken had shaken Irwin's confidence even more.
