1.After being a King,Military Chief,legislature,Chief Justice of his kingdom not because of Dictatorship but of Influence.No human till now haven't lived in poverty who possess any one of the position.The reason is he declared the property that belongs to kingdom is prohibited not only to him but for this generation.I dont think any one would have lived as simple life as this man after conquering every richness yet not enjoying it.by the way he was not poor untill he started preaching Islam he was one of the rich people in the city.
2.He completed the religion(Submission to God) but in the case of Christianity it is yet to be completed (New testament,old testament Etc...)I dont blame Esa(Jesus)
3.He abolished inequalities(Rasicm) in Society and treated everybody equally.
4.No king openly declared rule favouring women untill that time,not even Queens of British Empire
I can go on and on about this man.To me he is one of the role model in my life.