I would think that doing minimum 10 cent a minute hits would be directly self serving. A year and a half ago I tried every hit and did a lot of penny hits and I never made any good money until I started turning my nose up to those hits. Now I will not even do a penny hit, unless they put up 20000 Ci's or something like that.
Every act you make every single day of your life is self serving in one way or another... even if it is just to make you feel good or see someone smile.
That said, it's been shown over the course of history that the function technology serves in the work place is to move the work from skilled hands to unskilled hands and thus lower both the barrier of entry as well as the wage paid for that work. Mturk is one such technology... and it is by far at the extreme end of cost efficient.
To take that "allegory" to it's fullest as you've become more skilled the amount of work you are willing to do lessens, the wages paid on hits you like have been getting lower... and the penny hits you don't do anymore are being completed by newer less skilled turkers and the desperate. We've even seen workers hamming the shit out of batches that didn't pay at all... justifications for the behavior abounded.
Edit: We can blame some of that on more technology being created and made available to the less skilled workers... ie scripts.
It would be nice to have a company who doesn't see the service and its workers as a magical piggy bank. The lameduck stewardship of mtrak is half the problem, and all bad practices from the workforce comes after. 'cuz sometimes you hafta eat.
An argument for socialism? They say it will inevitably bloom from the corpse of capitalism.