Mikejw: "If it really comes to that need blood then take it rather than dying, but you generally get better care if they know they can’t just pump blood into you so easily"
"They" don't just "pump blood into" people willy-nilly. Blood is a precious life-saving resource that "they" save for those whom "they" determine really need it. It's rare, so it's used sparingly.
The HLC's job is to make sure that JWs die with a clear conscience. Don't kid yourself about them existing for any higher motive.