I was astonished at the claim that pilots ejecting can lose half an inch of height due to spinal compression induced by the G-forces. Claims seem to be borne out:
https://www.forcesnews.com/news/can-ejecting-aircraft-make-p... https://www.quora.com/Do-pilots-lose-height-when-they-eject-...
Making sure that the consequences are well-publicized also has the useful side-effect of making sure that ejection is regarded as a last resort.
You don't really get a rando who would be unaware of that in the pilot seat of a fighter jet very often.