[Ryo Chiba]

Sometimes it just isn't feasible to comply to this license system.

Sometimes it's the difference between a team spending a week to organize a license distribution method, or a day hand out installers and start working.

Sometimes it's the difference between lugging a desktop computer into a classroom and installing it within the school (to ensure that the licenses are not stolen), or carrying the program on a flash drive home. (I trashed my desktop's HD doing this my first year on the team)

Sometimes it's the difference between not learning the software at all, or learning it.

Sometimes it just isn't feasible to comply to this license system.

And sometimes(assuming that students aren't selling their work, or distributing their pirated program to a large business and cutting profits for the software company), noncompliance to the license system does no harm to the software company or students.

Kevin is right in that in our perfect society, we should strive not to disobey these laws written before us.
However, Mazin is also right that in our imperfect society, economics and logistics outweigh these laws in most circumstances (for students, anyway).