That strikes me as kinda odd. What you basically imply is that people wed just for the heck of it. Like, "we got nothing better to do so letīs marry".
I know of no man or woman for that matter that wed their husband/wife just to "do it". There are lots of thoughts and feelings involved not to mention a helluva lot of planning

.
I think that to wed somebody you need to cherish and love the woman just like if you collar somebody.
I think the worth and meaning is just as strong. They just mean different things.
As for the collar calming you. Well that strikes me as quite normal thing to do if you are into things like that. It sets the mood of things and if you get collared you "sign away your responsibilities" for the time you play and can "let go" and feel and do things you perhaps wouldnt do when you arent wearing the collar.