As far as realizations go Woltz, he could be thinking that HIS times are changing, that he had changed. When he said in III "I spent my life protecting my family" and "What choice did I have?", he was rationalizing his conduct. Remember, at the end of I he outright lied to Kay and in II, he excused his failure to leave criminality behind with "I'm trying."
"Generosity. That was my first mistake." "Experience must be our only guide; reason may mislead us." "Instagram is Twitter for people who can't read."
