Despite attempts to improve the world around us, evil continues to exist. What may come off as incredulous to someone wants to do no harm, may be reasonable to the people doing immoral actions.
Take for example, a criminal organization that coordinates closely with a state government. The criminal organization kills, steals, and is completely corrupt. Ironically, the criminal organization also provides order in conjunction with the government in that there is little chance for political opposition. In addition, the criminal organization provides basic foods and services to the neighboring population given that they pay a fee.
Under this context, is it possible to eradicate evil? Do evil and good have to coexist? What would happen if good were to completely prevail over evil?