Majlis Rasulullah is the majlis amanah and majlis shame. No mention of the ugliness of others in it. The honor of others is always awake. When the Prophet rebuked a man, it was not mentioned "fulan like this", but by stating, "why there is a group of people who do this and leave this thing". Only with kinayah language.
So that the Prophet's dakwah succeeded and followed by walisongo, and other scholars who brought Islam to Indonesia, with their greatest weapons of akhlakul karimah and character. That is why Islam spreads easily throughout Indonesia.
Akhina al-Habib Ali al-Jufri, he said "if I see someone who invites to Islam, but gossip, berghibah, bernamimah and beracimaki in the name of da'wah, then I thank God, alhamdulillah, I do not know Islam from people like this.
If you do not preach with akhlakul karimah, then very few people who will enter Islam. Show the beauty of Islam in the midst of society! that's what it's supposed to do. Amar makruf nahi mungkar is very important, but, the command is the good as the Prophet ordered. Our example in the amar makruf and nahi mungkar is the prophet muhammada saw.