I value his opinion, but I also tend to wear what I like and style as I like regardless of whether he cares for it, unless he has an actual valid reason for disliking it. The only things he has ever truly objected to are outfits he thought were too revealing, which I'm okay with and stopped wearing because he truly hated them. I no longer wear anything like that, so its not even an issue anymore. He doesn't like me coloring my hair at all, as he thinks hair color should just be natural. I used to highlight my hair or color it red, even though he preferred it natural. he didn't hate it, but he would comment that he preferred it brown. Now I just color it the natural color to cover grays. He is okay with this, as at least I'm sticking with the natural color. He prefers my hair long, but I think my hair looks like crap when it gets too long. I just got an angled bob, which he says looks nice, but he still prefers it long.
I guess to me, it depends how much something bothers him. If he really, really hates it, I would not wear it or would not do it, etc. But if its just something he doesn't prefer, then I'm still going to do what makes me most comfortable.