As time progressed a new prevailing ideal began to sweep across the major cities. The idea that one’s power, value, and worth came from within. This fairly innocuous belief manifested as a general disdain for established religion. People point at the world they have created and say that this was made by the blood, sweat, and tears of mortals not gods. As such, they should not live to serve the gods, but the gods should serve them.
Clerical magic has become more and more rare as time progressed. Now, the path of the cleric is one people rarely walk out of devotion to a deity, but rather a career one chooses to pursue (much like doctors irl). Few deities grant clerics power anymore, those that still do don’t do so for the antiquated morals of old, but rather a desire to improve the lives of mortals. Even so, healing magic is exceedingly rare so plague and disease are all too common in cities.