Think of the services like a separate community. You have your percentage of service persons who will cause trouble, skive off and be that admin burden. You also have the percentage that will do what they are told and do what’s needed to keep the seniors happy and just get by kind of like the “grey man” then you have the percentile that work their balls off, do as much as they can, get on any and every course to improve themselves and therefore whatever service they are in. They will do voluntary community work and strive for promotion.
What I am trying to say is people only remember the negative things but there is a lot more to it than that. You can see just from reading the above replies who is serving, has served or has close family that is in uniform vs Joe public.