No, you are doing it for your wife. The white people are not going to "benefit" one way or the other. She asked you to do it for her. You may not agree with her reasoning, but after that event you don't see them anymore, she does. Don't do the most men thing. We all have a difference of opinion on what we feel is appropriate for various kinds of events. Let's just say its an event that you two don't agree with her first choice of an outfit. And it could be the other way around! She might put on something frumpy and you're like come on I don't want people to think I'm married to some corny lame chick, put on something a little hotter. It's about choosing your battles. He's acting like she asked him to put on something he doesn't normally aware. OBVIOUSLY he is not against wearing long sleeves.