Dare to DM

Think about it. Gods are fueled in part by mortal belief and prayer so Gods need to cultivate widespread mortal civilizations to maximize their following and thus their power. But the longer a mortal civilization goes on and the more advanced it gets the greater the possibility that one or more mortals will catch a case of the Old Hubris Shudders and take a swing at usurping the Gods, dethroning the Gods, banishing the Gods and cutting off their access to the Prime Material, or otherwise table flipping the divine balance of power.

If you're a divine being that's bad, so what do you do? You employ the good old Tower of Babble strat. Frequently.

Mortal societies getting the magic-tech version industrialized and starting to question the infallibility of their agricultural pastroalist deities? Wide spread famine will fix that right up. Elves building a continent spanning empire and the Emperor starting to crave immortality and worship like a god? Smiting the Emperor is a Standard Action and toppling his Empire with a rain of jaguars is a Bonus Action. A particularly rowdy group of wizards start planning to raise their city into the heavens where they might potentially be a threat? Turning all the wizards into undead and punting the tower into the Underdark for good measure nips that problem right in the bud AND creates a fun dungeon location for some mid level adventurers in a few centuries.