Are you sure you aren't just unconsciously repeating the same prejudice, but from a different click?
How will the people around you react to you using a suit? If it's badly, you are as much forced to wear a certain kind of clothes as the GP was.
Anyway, just because there is a dressing code, it doesn't mean that the culture normally associated with it dominates. Those are two different things, where one is a huge problem, and the other mostly irrelevant. It's always better if you react to problems that are rally there, instead of noisy proxies.
How will the people around you react to you using a suit? If it's badly, you are as much forced to wear a certain kind of clothes as the GP was.
Anyway, just because there is a dressing code, it doesn't mean that the culture normally associated with it dominates. Those are two different things, where one is a huge problem, and the other mostly irrelevant. It's always better if you react to problems that are rally there, instead of noisy proxies.