It seems that Carl put his career ahead of his family, and that was a sore spot for Bud. And then he hears Carl say it again, when he really needs his dad to just trust him. But Carl was right and bud was a fool at that point. Bud realizes that he can pay his father back for the betrayal gekko pulled off by saving the airline and saving the mens'jobs. Gekko was right that bud had a golden parachute and could have bailed out once the deal was done w millions. Bud should have went alonghe'd be rich ,his dad rich and retired, and the men could find other jobs, sorry bout their bad luck lol