In this article the ways in which philosophers have thought about greed are discussed. From antiquity until the Renaissance greed was considered to be a sin. This immoderate desire had to be stopped because it constitutes a threat to the wellbeing of both an individual and society as a whole. This changed since the beginning of the modern era, when a more positive attitude towards this excessive desire arose. The new opinion was: private vices lead to public benefits, and thus the normalization of an excess came about. Greed no longer was considered to be a sin or vice, but instead to be a harmless passion that had a good effect on the welfare of society. The financial crisis of 2008 may have induced some doubts concerning the idea that greed is good, but a real change in opinion has not yet occurred.