[Beloid7man]

I think that jims aggressive arguments behaviour comes not from its genetics or frontal lobe abnormality. Its come from his past childhood. Being loved so much in childhood make people become a competitive person and egocentric. They get used to be a center of attention and think that arguments, will and other persons needs is irrelevant. They are not violent in physical things but violent in how they treat people. There were studies that said that people with higher IQ have more self control ability under alcohol influence. I think its the same in this case. Jims ability to control itself come from good education that furthermore increase his self control.

[faceplanted]

"Being loved so much in childhood make people become a competitive person and egocentric"

No it doesn't, that's a ridiculous generalisation, children are specifically taught to restrain their competitiveness by their role models reactions to it, it's not the amount of love they get, it's the priorities of parents, there are many noncompetitive people who received a lot of love as children.