In Portugal we're overflowed with teachers so it's normal to have a lower salary, most are just happy to be able to have a job
it's a bit sad tho
I'm Atheist, so I don't like people imposing religion beliefs to, but I don't mind books referring to Christian beliefs or even maybe other religions. I am fairly informed in christian, Hindu, Buddhism, Jewish, satanic (maybe it's not exactly what you think it is, there's a huge difference between satanic and devil worshipers), even maybe a bit about pagan ones, but I just prefer to believe in myself and in science instead of something I can't see. But I do believe that some people need to believe in something far greater than themselves.
*EDIT* to be more on topic, I think books talking about a certain religion or better various may bring better reality to it but as long it doesn't judge the way that the reader thinks.