We were told even during my time in the mob that the services had to reflect society, and that was assumed to mean that we would become more multi-cultural (although in my experience we weren't far off in reality even then), that we would become more accepting of a range of sexualities and that a relatively rigid hierarchy would be replaced by leadership based on teamwork and ability for the job in hand. The result would be a fairer, more just and, above all, better military.
Unfortunately, over time although we have seen some of that come to pass, we have also seen the services to some extent also reflecting the less desirable (but nonetheless growing) elements of society at large - a 'me' culture instead of a team culture, a culture where people feel able to lash out if they are dissatisfied with their lot, where self discipline isn't instilled by the early & consistent application of 'external' discipline and where it's always someone else's fault if things go wrong.