Someone who makes excessive profit (especially on goods in short supply)

Il saprofita is a 1974 Italian drama film directed by Sergio Nasca.

Profiteering is a pejorative term for the act of making a profit by methods considered unethical.

First emerging in the early 1980s and became pervasive through the early 1990s in China, the term "profiteers," in Chinese expression daoye 倒爷, refers to a new group of private businesspeople who operate as brokers, using their market knowledge and connections to obtain goods at low prices for resale at a high prices.

Make an unreasonable profit, as on the sale of difficult to obtain goods