Why didn't they just walk out? 
When your industry & profession has been devastated by back-to-back tragedies resulting in a dearth of work, and your old standy of waiting tables goes out the door because SARs has devastated the tourism industry, and the bills have piled up and you're about to lose it all, ...a job with the potential to pay you well upwards of $50 grand for maybe 8 days work is not something you turn down lightly or walk away from. Once you sign the contract, walking out can pretty much end your career, ...unless you are an A-lister, ...and even then it's a horrendous risk. For the actor, unless you are a marquis name who can guarantee a solid opening weekend box office of $20 - $30 million, walking out is NEVER an option. You are hired to portray a character
'as it is written in the script.' The problem for most actors is, they rarely get the entire script before contracts are signed, and even then constant script rewrites & revisions make it a mute point. For the crew, the content of the script is irrelevant. Someone hired to do wardrobe isn't concerned with the dialogue contained in the script, it's none of their business. It's not their department, and meddling in someone else's department is a quick way to ensure you never work again. Their focus is making sure the wardrobe looks good and is lint free, same with makeup artists, hairstylists etc. If an FBI agent is a fictitious FBI agent, or if his dialogue is inaccurate, or mere flights of partisan fancy, it is not their place to comment. Their job is simply to make sure his/her hair looks good, and there are no strands out of place.
People need to work & feed their families, and for many, that is their first priority. I don't judge them.
