Americans are not taught that “greed is good” you are citing a famous line from a movie about a fictitious crooked finance hawk that ends up being incarcerated. I spent over thirty years living in America and no one that was deemed sane ever said to me seriously that “greed is good.” I was born and raised in the USA and I was taught, along with most everyone else around me, that greed is bad and ultimately leads to self-destruction. Are there people that believe greed is good? Of course! But those people are a minority and certainly cannot be defined by geographic, or even cultural boundaries!