What Prophets provided were the 'Constitutions' to lead and live a systematic life in a just and organized society. Subsequently Nations did the same, Rules and Regulations and Procedures were drafted suiting one's individual needs and requirements based on various factors ....... the intentions were and are for a 'better and just society' ...... thats all.
Janat and Jahanum both are here ......... if a society is just, then we are indeed living in Janat ........ Abdes (and bohras) living in Mumbai and Karachi are perhaps living in a mini-Jahanum.
One should understand these concepts (Janat and Jahanum) are just the Rewards and Penalties imposed by Prophets as they did not had the 'real' power to govern and enforce rules, hence the idea of 'divine' rewards and punishments. Today we understand .......
