Those are all fair comments. The family business is running a printing factory. My father has been doing since, say, 1965 and was actually running his father's business at age 35 (his dad was also running a printing factory).
As for dropping the Theological Studies major, well, I'm doing it at a very respectable seminary, and am considering a MBA following this program. In fact, if I carry on for another two years and don't really want to continue, I can definitely get an MBA. If I had the money to go to business school, I would have done an MBA to start, but need to save some money first. Essentially an MTS is a cheap way to get a masters and maximize the number of things I can do with my life. As one of my mentors said, I could do anything from running an NGO through to sleeping in the bush teaching the gospel to Africans.
It's an unusual position I've put myself in. My undergrad career was very come and go. If a course got too hard, I dropped it and generally didn't spend much time studying over the course of the year. I still have books from uni I didn't even open. However, once I got into the 3rd and 4th years, I really started to enjoy myself and became a lot more serious. But my ending GPA was a 2.35, which is exactly .55 too low for going to grad school directly. The only option I've got is to get the MTS (no GPA requirement as it's a seminary program through University of Toronto, not a business program) and get the MBA after.
As for a median income, 40k is very respectable. I have single friends who live on their own and live quite well with a 30-35k salary. I have a good friend who earns in excess of 60k, and is spending and investing so much, I live much better than him.
As for an MTS leading nowhere, there are dozen of degrees which are less useful. Does anybody know an English or French or German major who does anything but teach or get a PhD? At least the MTS from an Anglican seminary gives me some options. And honestly, money isn't everything. It's great to have, but I don't want to do something that I don't enjoy (but trust me, I loved undergraduate mgt courses) like HR or accounting just because it pays well.