For all jobs, it is important to maintain a certain level of hygiene. That means you should be clean and neat at work each day and you should not smell. You need to be clean and neat so that you fit in with the rest of your co-workers.
It is okay to be different, but it's not okay to have poor hygiene. You don’t want to be known as the guy who smells like body odor! People will avoid you if you do not maintain appropriate hygiene.