I work in an arena where you'd better look professional and conservative. I am pretty sure I wouldn't have gotten the job if I came to my interview covered in tattoos. I went to my interviews in a full suit and no jewelry except my aggie ring and one pair of gold studs in my ears. (I take the other piercings out for work). I honestly do want another piercing but I won't get it likely and decided against it because of work. To me that was being responsible and respectful.
The decision doesn't bother me in the slightest. I really value having a secure job with benefits. I could not limit myself just for something like that, the idea is silly to me to be honest. Especially someone in my position looking at the kind of field I was looking into and who had been jobless for a while. I NEEDED a job much more than I wanted my extra piercings or wanted 'to make a statement'.
I actually like the dress code and like the fact that everyone goes to work looking 'professional'. Argue about what being 'professional' is, but there's a standard we're held to and it's far beyond just a dress code. Like it or not, your employer is just plain going to tell you what to do while you're on their watch. We can't be running around doing whatever we please, saying whatever we want, and yes this extends to dress codes. There is a certain professional standard. Just like I am not going to go to a team meeting and start swearing like a sailor, I'm not going to go in wearing a mini skirt or have a bull ring. It would be distracting and unprofessional imo. I think dress does affect people and I think employers have every right to set their dress code. We represent our company/business. We are often meeting with people from our competitors and representing our company to them. We need to handle ourselves and present ourselves well.
Realize you're cutting your options if you do something like that, even a pretty tame visible piercing or tattoo can hurt your chances depending on your area and your industry. If you're fine with that, then go for it. Just be aware that's how a lot of the world currently works and you're cutting your chances.
Yeah, I'll be labeled as a bah humbug now.