Good-Person
Captain Junkie
I believe that any kind of job that requires their workers to be on uniform is usually looking up to a particular kind of standard when it comes to their workers appearance which is why the uniforms have provided and always made sure that all workers observe wearing it, otherwise they're going to answer to the management.
Not all the companies that have a specific dress code may be ethical. There are many companies that may have a specific kind of dress code, but their nature of business may be really unethical as well. This is why we need to be careful about such kind of companies.