My first thought was to wonder whether we need a maze of committees and statutes and whatnot to treat people decently. As Terry put it - I have tenure and I can give a fuck if I want. So I do. I won't take on students just to have worker bees in the lab.
Of course, we need the legal alphabet soup for the ones who don't give a fuck - but it doesn't seem like most proffies are in this category. Mozman is an extreme, possibly a charicature. Most of my actual colleagues (for all their quirks and foibles oft pilloried here) are decent people. They like their students and want the best for them. Yet collectively somehow academia (at least STEM fields) maintains this culture of students-as-cheap-labour.
What the fuck is up with that? How do basically decent people wind up perpetuating this?
Sure the productive labs get rewarded by the admins and the granting agencies, and exploiting grad students is one way to crank out 'product'. But once a PI has tenure, the baubles on offer don't seem enough to motivate the truly greedy, and you'd think someone willing to sell out underlings for advancement would go into finance. Are we all just locked in some sort of massive version of the Milgram experiment?