This is a weak mentality, in my judgment. No person could ever be important enough for me to drop what I live for.
Well, you may live for work, or money, but personally I find happiness in the love of those around me. Sounds really cheesy, but it's true. Money won't ever buy me happiness, but a wife and family would. So yes, I'd put my family before my career. And I don't think that I'm weak at all, I obviously just have different values to you. My main goal in life is to have a wife and children, and my career is only there to support them.
I don't think so. It's not just about having a job, it's about liking the job. If you don't like the job, you won't be able to sustain a positive attitude towards it. You are bound to fail in the long run and there simply aren't enough jobs to be able to switch at will.
Who said the RAF is the only career I could ever enjoy? I have many interests. I'll be starting a college course on Vehicle Technology and Motorsport soon, and I'd be quite happy running my own garage, or even just working for someone else in a car related environment. That's naming just one other career option for me. And as for failure, well that depends on your definition of success.