Unfortunately in life one cannot be totally idealistic. You think someone with 10 years exp originally joined the service "for the money"? Rubbish. If they joined for the money, they would have quit immediately after their bond (3 years) and gone to private sector to make big bux. But they stayed on for more than double the time.

It is human nature to seek new challenge and seek progression. Not just progression in workload and responsibility, but also reasonable salary progression to match. Who wants to earn the same real income as when they started? This year's increments only enough to beat inflation. Unfortunately a lot of teachers have their progression "glass ceiling"-ed by opaque ranking, promotion and advancement systems. It is human nature to be jaded after being driven by passion for the initial years but not seeing any tangible recognition for it. Will become sian one. No matter how good your work ethic and how strong your passion was, at the beginning.

Like the earlier commenter so aptly pointed out.. passion can pay the bills? I wish!!