Engineering social justice.
Ensuring access to comprehensive legal representation.
EDIT: Doing law for law's sake and its intrinsic interest / value, not for the instrumental means to $$$.
I'm not saying all lawyers should be paid $40k a year, and I'm not saying all lawyers should be doing public interest / pro bono. But the degree to which people are scared about $80k versus $125k is kind of obscene - that's a sh*tload of money either way. That's also not to say that individuals shouldn't pursue $$$ as a goal either - but it seems like that's the entire focus rather than the study of an amazing area of influence and potential for growth (law).
Sorry, didn't mean to hijack the thread.