Based on my experience I would say your last post was a little harsh. Maybe there are examples in recent(ish) history where it may have been the case. In the time I've been in (1999-present) I have unfortunately had several friends killed in flying accidents. Out of all these I have never seen the system attempt to blame the individual or cover up anything. In fact I see a system that is at pains to honour the fallen and make open and honest recommendations.
My particular milieu is FJs (ex Jag as it happens) so I may not be party to grievances that others have with the powers that be, but I would not associate the MOD/RAF of old that you describe with the one I currently serve in and would be horrified if it were the case.
Bob, Have you never read the Mull of Kintyre Chinook accident thread?