Why Allah Sends Prophets?

One of the divine wisdom of sending prophets is to purify our souls. This is mentioned in multiple verses in the Quran, Haula de'ibah'aif al-Omihin arasulam. You know, I think this point, you really don't even need to contemplate. Open your eyes and look at the decadent lifestyle. Look at the hedonism that is rampant across the globe. There is no purpose of life other than enjoyment for so many of mankind.