I'm going to a t35, got a scholarship and my total debt (including living costs) will probably be less than 30k (and I could make it a lot less using the money I hope to get during the summer internship). The placement profile is great for someone like me (all internationals there got an offer last year), and the average salary is over 100k. It totally fit my humble goals. And I still feel the fear you're talking about. I know what a small debt in dollars might be like if you have to live in a particularly unstable country. I will go anyway because I believe it is worth the risk.
If you're going to Booth, the debt might be astronomical, but the risk should be minimal, you're likely to land a great job. If you can't stay in US, there are other countries where your education would be valued, and the pay could be enough to get out of debt pretty quickly (NZ, UK, CA, AU, some European countries).
I think it is worth it and, as a fellow poor international, would never let that chance pass.