Just one article about the work conditions: https://africame.factsanddetails.com/article/entry-190.html
It could be that building the pyramids was not the regular job of the laborers. It was a communal experience like going to burnig man.
Society would be different if there would be one project that everybody builds together. It would be as unifying as a big war, without the disadvantages of a war.
There is only one choice: feeling or rationality.
When you feel, you do what feels best.
When you think, you do what is the most valuable.
So no free will but that choice.