Well there are lots of different types of people training for lots of different reasons.
Myself, I always wanted to be a pilot but it just wasn't an option when I was young. Later I did a PPL and decided I wanted to take it further. Im now doing my fATPL. Will I get a job at the end of it? Don't know, don't really care. I have a good career and my own business so it would probably be a big decrease in my quality of life and family income.
I do however want to be fully qualified so I can fly my aircraft IFR anywhere I want. The difference in doing just this and doing the fATPL isnt that great so i thought I would go for the whole show.
If a job comes along flying a Bizjet or a kingair for someone then I would jump at the chance, if an airline is interested then that would be good too. I am however fully aware that it is a job and would never ever pay to work, thats insane. If this means I will never fly for a living then so be it.