[azth]

It also makes sense today. Look at how the rich are becoming richer, and the poor are becoming poorer. Practices such as interest are making the issue worse and worse. This is not sustainable.

A big point of banning interest is that one can just sit on his money, while making more money; without really incurring any risk. One can get wealth from other means, which contribute to the society, while incurring risk on the money owners part. This is key.