Law school was a terrible financial mistake, and I am certainly poor compared to where I was before I went to law school. I now make $50,000 a year, drive a 1990 car, and live in an efficiency. With that $50,000 I have to pay $1300 a month in student loans, then there's the taxes, and dry cleaning bills (not cheap when you can't wear shorts and jeans anymore), plus work 60 hours a week for an not so nice person. The first few years out of law school are really awful. At least in school you are getting financial aid, when you are done, the credit card balance shoots up because you need to pay for the bar, study materials, job interviews, buy a new wardrobe, etc. I worked full time up until a week before the bar, so there wasn't any accumulating debt while 'studying' for three months. Do I feel poor. hell yeah. no hope for buying a house in the D.C. area for several years yet, no new car, and working my ass off for a bad quality of life. I'm I poor, well, no, but certainly not as well off as I would have been had I never gone to law school. Right now, after I pay rent and loans, my left over spending money is about $300 for everything else. It's all relative.
I suppose the obvious answer to this is that it all depends on your definition of "poor".