Olive,
LOL... now you are the one that makes me laugh with your assumptions!
I do actually work in the industry and believe me I've seen workers from the same origins in let's say, Hong Kong, that have no choice: either they learn (with adequate training) the requirement by LAW to wear PPE, or they are out of the job.
You see Olive when the LAW, the enforcement, the penalties and the integrity of a nation is there, miracles cam be done.
Trust me I’ve worked in the industry even in poorer countries ;)