The prophet of Islam and his household, peace be upon them all, devoted all his life for distributing Ahkam (Islamic commandments, derived and understood from religious jurisprudence resources.), ethics and morality, and believes, and there solely gaol was to distribute Gods Ahkam and to reform and refine mankind and he bore any murder, plunder, ignominy and insult in this path and never stopped.
The great prophets and the Imams, peace be upon them all, were seeking to up-bring people. God almighty sent the prophets to reform and refine mankind.
The Imams with their divine view, wanted to unite nations with different methods, unite them so they wouldn’t be vulnerable.