lrd - i think if you've joined the military, any other political statement is pretty much null and void 
but i think everyone who took part (in our wedding) recognised the 'standard operating procedures' for what they were - a nod to custom, and then got back on with real life. 
in hindsight, of course it would have been possible to make some sort of statement by deliberately going against the status quo, and in some ways it would have been deeply rewarding (!) but tbh, it was a sort of historical pageant like loads of other military displays/ parades i'd taken part in (proudly, lol). so, as a feminist it didn't really seem like a sell-out, as i wasn't living it at that point.
whether or not the deeply traditional nature of (most) military weddings bodes terribly well for the survival of feminism in the marriage itself... i do wonder. maybe it's an underhand way of letting you know what the real expectations of your role are, with a stonking great bill to underline them. 
have women in the military made a great difference to spouses? no, don't think so. some of us just cross the fence and work our feminist heads round the fact that we now follow, rather than lead
. you get used to the fact that often the only work you can get is unpaid voluntary, you get told where to live and when, and reasonably often get your social life dictated as well. i exaggerate for the sake of effect, clearly, as i don't think i've quite lost the will to live yet, but i do often have a voice in my ear that says 'equality, eh?'
. in a way it's a nice little reminder that there's a way to go. women in the military and equality is a whole other discussion, though.
that would be a whole other thread!
i should add i love my dh and dcs to bits, it just happens that outwardly the life we have ended up living isn't exactly shouting 'make way for the new age', despite what happens behind closed doors, which i would say is far more in line with my feminist ideologies, lol.