"Ex-Servicemen are likely to challenge illegal or dangerous practices"
As a slight interloper here I was taught to fly by a VGS at a very young age and I recognized the above a few times in a job. The 'safety culture' was very much if you see something you don't like open your mouth and say so - it was a genuinely open within reason environment.
My first boss at said company was so good that this was never an issue. Cue his replacement and being told to 'shut your (my) F**cking mouth and mind your own business' after respectfully pointing out a very dangerous practice.
We never saw eye to eye and once nearly came to blows but was proved right after I'd left when a lad lost a few toes under an FLT wheel. But it was about the 4-5th time this had nearly happened.
Lesson learned.