If present, our world would be superman and superman, because there are likely to be quite help secure and monitor care world, there are no outlaws or bad guys, and the good of the police as an Assistant.
If current superman our world would be peaceful and livable because superman to help secure and oversees the world that no thief or mugger, and is of great help to the police.
If the world will be peaceful. Superman tidy and pleasant, because there are Superman can help maintain the safety and then check and the world without thief or criminal and is a good assistant of the police.