First, many simply want to fly and do not care about the wages - i.e., their desire to fly outweighs some of the negatives.
Just to clarify so as not to be inadvertently taken out of context.
Good, bad, or otherwise, this is a simple
observation on my part. The truth of the matter is that there are those who simply do not care (at this point) about low pay and/or issues with QOL standards. It neither makes an individual good nor bad for it. However, as an observer, this is something that will affect supply and demand with respect to labor, and thus does give a manager the upper hand.