mad about money
Being obsessed with wealth is a Chinese idiom, pronounced C á im í x à nqi à o, which refers to people who want to get rich and lose their normal understanding. It comes from Sun Li's xiuluji GengTang reading notes (3).
The origin of Idioms
Sun Li's "xiuluji · GengTang reading notes (3)" said: "if the author at that time had been more calm and had not been obsessed with money, the world would have been safe."
Idiom usage
Maybe he went to rob the bank because he was in the dark.
mad about money
give birth to a multitude of heroes - yīng xóng bèi chū