Full disclosure: I wear at work, though I've often second-guessed my decision and would reevaluate if I were to switch jobs.
Until this point, however, I've long thought that wearing it was the "right" thing to do for two reasons:
1) If I did not get a job *on account of the fact* that I was very obviously an orthodox Jew, I probably did not want that job in any event. Not hiring me would only be the potential beginning of a critical and judgmental work environment, the likes of which would be difficult to handle day-to-day. ("Leaving early on Friday again, AJK?" or "Didn't you just take off two days last week, dude?")
2) My mother says, "you will never go wrong doing the right thing." Employing that cute but otherwise insightful maxim, I came to the inexorable conclusion that if I had even the least bit of emunah, including that my parnassah is set on RH for the year, then it would be rather foolish of me to compromise my religious observance in the hopes that I could "outsmart the system." If I were going to make X per year doing what I was supposed to do (which in this case would be wearing at work), then what would I stand to gain by taking it off? Well, certainly not more money. Instead, I'd only gain a boss who may otherwise make my life difficult (see point one).