Many of these students do not have an authentic interest in business. To me, business is an intellectual pursuit. I know that this sounds silly and ironic, but I enjoy following the financial markets, learning about monetary policy, testing a business idea by designing a prototype, etc.
What I was getting at in this post is that I have no desire to be a middle manager.
I have friends that are university professors and they actually like it when students give a shit about some things and will help out. Those are your mentors. Then there are the other folks in your degree, some who might be like-minded. Find them and make friends. Those are your peers, and sometimes your (friendly) competition. That network will be invaluable outside of university, not only for any sort of deep friendships you establish but in terms of career networking.
I highly encourage you to study those interests independently, whether you stick with business or not. You'll never have more time to spend in the library geeking out about whatever you like. It's what I miss most about university.