Also, I totally understand the whole "why in the world would you pay for that" but if you work in tech you're in a fairly privileged position. The thing I desperately wanted to do most of my life happens to pay well. Somebody else desperately wanted to work in museums/heritage/archaeology and share knowledge. And museums do good work - one of the projects she worked on was repatriating artifacts stolen from Native American graves in the early 20th century. Since the thieves generally didn't take good notes, it could require a lot of time, effort, and knowledge to determine an artifact's provenience. That was more related to her undergrad studies - the graduate degree was more about a mix of preservation, conservation, etc.
I'm not sure it's worse than making some F2P game or Tinder for dogs. But it's definitely less profitable.
My wife got a Bachelor's from UCLA, then a Master's in Museum Studies from University College, London. She then worked for free (it was called "interning" - which is kind of crazy for someone with a master's) at the San Diego Air and Space Museum (some kinda weird folks there...), and the USS Midway. She gave up weekends and time she could have spent earning an income. It amounted to nothing, though she did get a neat volunteer dinner from the Air and Space Museum. Now she has a normal job in a normal office because she has to pay off the debts from school and can't afford to work for free.
Anyway, your anecdote is valid, but so is mine.