Why Does the world turn?

Two of my close friends are both juniors in college pursuing careers in the business world. Because it's recruiting season, they're both under a lot of stress and most of it is ever so kindly 'dumped' on me as I am truly the only objective bystander. Needless to say, I've learned quite a bit about the recruiting and the worlds of finance/consulting and at the end of the day, I just feel sick.
Why sick, you ask? When I asked my friends about the type of work that they'd be doing, it all cam down to one simple thing : making rich people even richer. Now, I don't want to sit on a high horse and damn anyone who ever made money, but I hate to think that some of the smartest people in the world are so easily lured by high salaries and shiny skyscrapers. Not only that, these companies treat their prospective interns like gods. Airline tickets, cab fares, hotel stays, these are just a few of the luxuries of wanting to be a bank bitch for 3 months.
That's only the beginning. If you're one of the lucky few to recieve an offer, they fly you out for another day just to show you how great their company is. One must realize, however, that great is usually defined by the volume of free bags, pens, and desk calculators they give you.
You must be wondering why I take such issue with the world of money. The answer is this: this world of banks and firms woos the young in a much different way than the healthcare world. Medical school applications cost anywhere from $60-$100 each and no cost is refunded. The admissions process itself can dig a nearly $4500 hole in your bank account, but that's nothing compared to how much you'll pay once you're accepted.
I wonder why medical schools haven't picked up on the fact that medicine isn't as popular anymore because there are easier and more lucrative path to go down. It's not enough to just want to "help people". You have to want to work hard, be involved, do research, volunteer, and basically attempt to maintain whatever pathetic shell of a soul you have left. I still can't figure out why I want to be a doctor. Maybe I just can't do anything else without feeling like I'm hurting society more than I'm helping it.