The NCAA is far worse. KSP was exploitative, but at least these employees could quit and get a different job. If you want to play pro football/basketball, the ncaa owns you. And they're gonna make sure that everyone around gets paid (coaches, universities, chancellors, shoe sponsors) while the athletes stay broke, poor, and never really end up getting that supposed education either. With free risk of life-altering injury!
Well, games don't really make a lot of money, unless you are King or another mobile giant, or make CoD or Fifa. I work at one of the largest games companies in the world, and all I can say is that for every game that makes millions of dollars, we have 20 projects that never even see a public announcement and eventually die, yet still cost us tons of money. That's where most of the money goes.
But yeah, programmers are hilariously underpaid, until they get to Senior level or above - there's just loads of people to fill junior positions.
EDIT: I'm not saying its right, I'm saying it happens far more often than it should (as long as people decide not to opt out of being exploited).