Life is too short to spend it doing something you really don't want to do. If you change path you'll lose your scholarship, won't finish medicine, some people will look down on you - so what, there is always a price to pay to follow your dreams. And if you don't know what your dreams are you should do something to find out.
It takes a certain kind of person to work in medicine, it is a hard slog, very demanding, takes up most of your life, is filled with all sorts of crap too like lawsuits and huge insurance bills. I wouldn't recommend it to anyone unless they have a heart of gold. There are a few in the field who aren't particularly happy to be there and they can be a right pain in the ass for the rest ... well to be honest they aren't that bad but it isn't great to have people in such a position unless they really love it. Having said all that, medicine is very rewarding indeed in ways most people never will be rewarded in their jobs, truly helping people, sometimes saving people, and seeing the hardships some people are facing makes you appreciate your own life more.
But you must do a job you love.
If more people (everyone?) was doing a job they love, or at least, loving the job they do (even if it is a bit crappy) then the world would be a better place.
There is nothing like doing a job you love and working with people you love working with.
And maybe, there is nothing worse than getting up each day going to a job you hate.
If you love what you do and are good at it there are opportunities in this world to make a good living out of it, even a fortune, but if not, then a good living. I've known people do this in all sorts of crazy careers.
Money should not be the deciding factor when planning your life career, money is only important when planning immediate financial situations. Money is never as satisfying as using your brain and skills to do something that you really enjoy, and getting appreciation for it. Besides if you are a bit clever investing your money you can over time build up a good nest egg.
You plan sounds OK to me.
Don't worry too much about being thought of as goofing off, if you go off and get your head together then come back with focus to whatever career you seek, people will understand and respect that. That's if you are returning to a corporate path.
Note though that you might also be judging a medical career based on your academic experience - NOT on your experience working in the medical field. Just because the course might stink doesn't mean the job will ... so that is something to consider.
Note that whatever you do you are going to have to work hard, either it is going to be hard because you hate what you are doing (or are bored senseless), or it is hard because you love it and are pushing yourself to achieve all the things you want.
Hope that helps?