Worrying about "blood and guts" is perfectly normal for a lot of medical students (or just health science etc. students). Your university is pretty decent at recognizing that it's tough for some people and they'll let you take it easy as necessary. I was a little worried about it as well but when it came to the first time in the anatomy labs it was actually nowhere as bad as I expected. Rather it was quite interesting and that distracted me from the actual dissections and whatnot.
If you want to work in an area with no surgery that's perfectly possible. Whilst you're training you'll need to observe and participate in surgeries (everyone will) but you obviously won't be the chief surgeon. If you want to specialize in another field you'll still do the surgery training but you'll stop once you start your chosen specialty.
I think to earn that much money with medicine would require you to do a specialisation. I don't know much about med but I think it'll end up being something like 5 years med + 3/4 years specialisation study + internships, and the high-paying ones like surgery are highly competitive. Maybe contact shinny or Russ for more info on that
Everyone specializes, otherwise it's just torture for 40 years. Anyway, the pathway goes: Med School (5-7 years depending), Internship (1 year), Residency/PGYs (X years, probably 2), Study for fellowship/specialty (4-6 years). The exams for the specialization are really fucking hard, so it's not unusual for people to take longer than the minimum timeframe.
In terms of pay, you'd get ~55k in your first year out as an Intern and it goes up by a bit each year. Once you've gained acceptance as a Fellow of your college (FRACS etc.) then you get what's called a provider number, so you can bill Medicare. At this point you can set yourself up as a consultant and start trying to run your own business (or, more likely, keep working in the hospital because you have no patient base). Eventually you'll start shifting more and more to private practice, where you can get a lot of money. A LOT of money. My specialist makes $100 off me for a 20 minute consult, which is ~$300/hr. Even working, say, 6 hours a day, 4 days a week, 40 weeks a year...well...you do the math.
That pathway (of complete private practice) is the "business" of medicine and some people just don't like it. It's up to you to find a balance, but nobody is going to say that doctors don't make money, they just have to work hard for it.
One thing I will say about medicine, is what my consultant told me: your life will be different forever, because it's a job for life. So if you're interested and committed, then it's fantastic but if not, then think about other options