What I took from the OP was that he doesn't need a grand ceremony to solidify their love and vows. But is doing it because it's a meaningful event for their fiance.

I didn't see disinterest, just someone ranting about the pointlessness of marriage, and he didn't say anything about marriage going against his loyalty. There wasn't anything indicating that he doesn't love his wife.

As to @Stuck1nhead Perhaps this is something you should talk to your wife about. So maybe you two can at least come up with something BOTH of you enjoy to celebrate a long lasting life together. Heck, maybe a marriage could be arranged to both of your likings.