I think that in many cases, they don't try very hard to keep people alive because of all the profit involved in organ donation.

If you're really interested, check out this interview with Will Boytim on the Tom Woods Show: https://tomwoods.com/ep-2665-we-saved-our-son-by-ditching-the-hospital/

His baby son "drowned", and was supposedly brain dead. The hospital pressured them strongly to NOT pursue any treatment, and instead allow for his organs to be harvested.

Will fought back, pursued treatment, and is now exposing what happened. He created the site https://drownedbaby.org/.

His son is now mostly fine, with some delayed fine motor skills.