Final answer:
The prohibition of legal alcohol sales had a significant impact on organized crime groups in cities like Chicago. Gangs like Al Capone's Chicago Outfit took advantage of the ban on alcohol and controlled illegal activities such as bootlegging and gambling. The flow of money from lawful businesses to organized crime contributed to Chicago's reputation as a corrupt city.
Step-by-step explanation:
The prohibition of legal alcohol sales had a significant impact on organized crime groups in cities like Chicago.
During the Prohibition Era, the ban on alcohol created a market for illegal liquor, which was seized by underground gangs. The opportunity to make and sell liquor at high profits led to the rise of organized crime, with gangs like Al Capone's Chicago Outfit controlling bootlegging, prostitution, gambling, loan sharking, and even murder.
The flow of money away from lawful businesses and into organized crime was one of the most harmful effects of prohibition, contributing to Chicago's reputation as a corrupt and crime-ridden city in the 1920s and 1930s.