It's weird because I have met very, very few IT workers who aren't happy with their jobs. Maybe they'd rather be working for themselves or would change something about the process that's used but most people I know fundamentally love the work. I'll admit though in these times when I feel like I have slightly fewer options I tend to feel more upset about little things that I would otherwise let slide but I try to keep that in check. I can't speak for other professionals inside the IT umbrella but I love programming and most other programmers I know love it too.