Oh, I think it's much simpler: the other 9,999 didn't care enough to risk continued employment. Security today was dearer to them than the hypothetical benefits to strangers.
(Perhaps worth noting: not to detract from what Mark did, but he was retired and therefore didn't have a job on the line. Credit to him for leveraging his position of privilege as a retiree to speak out about what he knew.)
(Perhaps worth noting: not to detract from what Mark did, but he was retired and therefore didn't have a job on the line. Credit to him for leveraging his position of privilege as a retiree to speak out about what he knew.)