Why do people Worship Akatosh?

After reading up on some lore in elder scrolls I found myself questioning myself on the worship of Akatosh. So it's already established that Akatosh is the dragon god of time and a major deity in the nine divines. If I am not mistaken he is also connected to the dragons of Nirn, more specifically Alduin the World Eater.

From what I gathered Alduin's main purpose was devouring the world and essentially starting a new cycle. The graybeards even say that despite Alduin's change of heart and failed domination of man and mer, he can always come back to do his actual job. So from my understanding, Alduin works for Akatosh in restarting the time cycle by ending everything that is.

Putting two and two together, I realized how crazy it is that people worship Akatosh like he is a great and benevolent being when in reality his servants, the dragons, were made to destroy everyone and everything when the time arises.

Is this actually true, or have I missed something? If it is true, why has no one come to this conclusion on Tamriel as well? Why are they worshiping a divine whose goals involve destroying everything and starting over?