LAST EDITED ON 10-21-13 AT 10:39 AM (EST)I've forgotten much of the Discworld trilogy (just 3?)
Um...
...you're a little behind...
http://discworld.wikia.com/wiki/List_of_Discworld_Books
(The central golem novel is Feet Of Clay.)
The reason behind the relative silence of the revolt was the events which had preceded it. The golems, who knew the secrets to making more of their own, had tried to create their own king to lead them out of their condition. This, to use an understatement, backfired in the key of murder and anti-golem sentiment, which had always been present as background noise, got a lot stronger -- to the point where the city's golems were in serious danger of being attacked. And they had no ability to defend themselves.
The case was resolved -- but Dorfl, the first of the free golems, saw what could happen if open revolt truly took place. He decided the best way to free the others was through freehold: a silent revolution fought entirely with sales receipts. Those he initially purchased followed his example.
However, not every golem can be freed. Not all were created using chems and for those exceptions, no one knows any way to change their orders. Others wind up being freed and just stand in place thinking Now what? because following instructions is all they know. Some have been around so long that they just want to stop.
The Golem Trust can't even find all their fellows. Some of them have been hidden by the nature of their tasks. Imagine a medieval water pump. No electricity. No powered machinery. Just a golem at the bottom of a flooded shaft, turning a handle. For centuries. Who even remembers the golem is there?
And there's still anti-golem resentment. They work. They work endlessly in the most menial of jobs for the smallest wages -- so naturally, others see them as stealing those jobs. And again, given that only freed golems can fight back...
The golem revolution is a process, and a slow one. It hasn't been all that steady or well-received -- and that's with the free ones keeping it as quiet and peaceful as possible. They're getting there -- but the world pushes back.