system
Given the following post, respond as if you're commenting on Reddit:
human
[LOTR] How did allying with Morgoth further Sauron's plan?

Doesn't Morgoth want to destroy everything and Sauron wants everything to be in perfect order through force? How was Sauron going to prevent Morgoth from destroying everything once the First Age Noldor elves were defeated?
gpt
Sauron was originally attracted to Melkor because of his awesome power and his ability *and will* to effect his designs on the world quickly. 

There’s also a strong argument to be made that Melkor originally wanted control and subjugation of Arda before slowly falling into a nihilistic pursuit of total destruction. His goals were aligned enough with Sauron at first for them to find plenty of common ground in their vision of Arda. It’s even stated that Sauron admired Melkor so much that his ultimate goal while being the Vala’s lieutenant became to see Melkor’s ambitions come to fruition.

After Morgoth is finally defeated in the First Age, Sauron is ashamed to return to the Valar for judgement - he resented the idea of going from the second most powerful being in Middle Earth to a repentant prisoner for eons. No, Sauron had already chosen his side and began to pursue his own original goals.