Is it even sane to apply based on my profile??

I think people put too much emphasis on how much weight extracurriculars can carry. Sure, they help, but to what extent? Should it trump the academic side of things? I hope not. A lot of times it's too hard to quantitatively analyze how much you've contributed to extracurricular activities. Let alone the fact that a lot of these obscure, ambiguous clubs that are out there may not have a national brand. How would one go about verifying your work at these smaller, regional ones? Truth is, it's just a bit too hard to really consider extracurricular activities/organizations due to the extent of your work at these clubs. With that said, you should still try to find something to your liking and put your heart into a club or two. For me, I work very diligently and closely with my church and I had several actionable items that I can and have discussed wtih AdComs that could shape me into a better leader. Don't compare yourself to the other applicants in regards to extracurricular activities. I think that's a deadend that'll eventually fire back at yourself mentally. What you want to compare is your work experience, your grades, and your GMAT score. Afterall, these are the tangible items that are published by schools. In the meantime, if you find something to your liking that's outside of your work, by all means and join. Don't just join stuff to buff up your resume because at the end of the day, your heart's not there and you won't have much meaningful items to discuss anyway. In terms of why leaving "status quo" to take on a $150,000-debt for b-school, that's a different answer for different person. This is exactly why most schools will ask you, either explicityly or indirectly, "why MBA"? What do you expect to get out of this MBA and what makes you think this "MBA" will help you get there are questions that you'll answer in essays and in interviews. I know a person who's already making 6-figures, but decided to quit his job for b-school. When probed why, he basically said he wanted to do something else in his life and that it's more about the quality for him than about the paychecks that he's getting. Everyone's different and you'll be able to know why an MBA soon enough.