That is pretty intresting though. Most of the few NTs I know from my surroundings are into the sciences, nearly know no one from law or economics.
I am still interested in sciences, mind you, of every kind. However, my economic background is lower middle class; this means that I had to take into account in my decision on what I should major in of: the ease of finding an unrelated job if I were to have financial problems, and the ease of obtaining a scolarship, which is comparatively less difficult in a field where brillant students are generally less present (as opposed to the sciences).
Most of the people I know from my economics lessons in their building suck big time. There are in their 1st semester and already think of themselves as the richest man of the world, while I struggle with my lessons in thermodynamics or fluid dynamics

.
Eheh, I actually think that you're confusing Business with Economics. The former tends to attract the people you're speaking about - those focusses on becoming the richest man of the world - whereas the latter usually is preferred by more scientifically-minded idiots. My school offers both Economics and Business Courses, and rarely I had to attend a class that was in common between the two (basic calculus, for example): the scenery was very similar to the one you describe, and I know perfectly what you mean.
Pretty intresting though, maybe I have a wrong stereotypical view of the NT and do not recognize that a lot of them are here at my university in law and economics, too or they just are not.
I'm not sure that law attracts NTs as much as economics. Many ISTJs seem to be present in the law department of my university, for example. And, to be completely fair, even if most of my professors - and most people that have innovative, good solutions and models - are NTs, many of my classmates are not - there's 5 ISTJs, 2 ENFJs, 2 INFPs, 1 ESTP, 2 ISFJs, 1 INTP and 2 ENTJs (one of them it's me). So it's 3 out of 15.