system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] After the Jedi were defeated and the Empire took control of the galaxy, why didn't Darth Sidious try to rebuild the Sith Order?

The Sith remained in exile, only two members existing at any one time, because 1000 years before The Phantom Menace, the Jedi wiped almost all of them out. They were forced to go into hiding.

However, Sidious had won, the Jedi, most of them anyway, were dead. Why didn't he and Vader try to restore the Sith to their former glory? After all, the Sith once commanded an Empire thousands of years ago. By the time of A New Hope, 20 years after Order 66, Sidious and Vader are still the only Sith in existence.

Now, I know that the Inquisitors existed, and they were sort-of Sith, but they were a temporary measure to hunt down any Jedi who survived Order 66, they were eventually disbanded.

The only explanation I can think of is selfishness, Sidious didn't want any Sith rivals who would threaten him. This explanation makes sense, but, in hindsight, it was kind of a dumb decision as all it took was to defeat Sidious and Vader to wipe out the Sith for good.

Was this ever expanded on in canon? Do you guys have any alternate explanations?
gpt
Palpatine believed he was the culmination of thousands of years of Sith philosophy. He replaced Bane's Rule of Two, which he thought his victory made obsolete, with his own Rule of One, which stated that he was invincible and would rule the galaxy forever.

He would go on to take many lesser dark side apprentices and agents, but never brought them truly "into the fold," as previous Sith lords would have - they were taught to revere Palpatine as a master, or to serve the Empire faithfully, or some other motive other than "accumulate power for power's sake" that was the motivating force for both master and apprentice under the Rule of Two.