noun
mercantile spirit; mercenary mindset
Describes a personality or attitude shaped by commerce, often with a nuance of being profit-driven or business-minded. Can be neutral or slightly negative depending on context.
彼は商売気質が強いから、損得をすぐ計算する。
He has a strong mercantile spirit, so he quickly calculates profit and loss.
あの
I'm impressed by that clerk's business-minded attitude.