OP, you can't come on a forum where the majority of people want to be doctor's for 'proper' reasons i.e wanting to work with people and using science, etc, and pretty much say that you want to do it for the money. We're all concerned about student debt, but realistically everyone, even media studies students, will pay it off without huge problems. Its the lowest interest loan you're ever gonna get.
Lawyers make lots of money. Investment bankers make a fortune (and they help other people make fortunes - see? helping people). Teachers make a fair amount once you get into middle management and thats helping people too.
Go into whatever career you want and earn your millions, but please don't go into it for the money. You have to do it because you want to. Once you graduate, you've got a good 40 working years ahead of you. You may be earning 90K, but you aren't going to be happy doing a stressful, challenging job like being a doctor if you don't go into it for the right reasons.