We need a naughtiness regulator to adjudicate :p     I know of a friend of someone who got his way through university this way, but they never hacked anything just always supplied work which was not written by themselves.   So long as you pay for original work its probably very hard to stop, except for the fact he didnt learn anything on his course and could have been found out. 
 He was a foreign student going back home after and just wanted to pay for the certificate to get into certain jobs that required a degree, perhaps he had a position lined up for him waiting and would then run the union never actually doing the job anyway.

The hack would be more feasible for your local network, our high school computer department students had the net admin password to use whenever they wanted.   Any results recorded they were able to alter so long as the teacher didnt notice or they weren't too blatant.    I had pages printed out of everyones logins.
Inevitably they wrote stupid insults and it became completely obvious.  Thats the kind of hack which could work, vs a commercial organisation $100 is kinda laughable.  Maybe you find someone who thinks its a viable exercise, probably not.