When I was dressed goth/punk/grunge, people would cross the street, would not sit next to me on the bus. I used to get followed around by the local supermarket security guard.
Less than a year later, when I was at court in work capacity I wore a suit, plain, smart hair, and the same security guard said hello!!!
Even now, I find suit dressing very powerful.
But perhaps its how I feel that influences it.
As a goth/punk etc, I looked more moody, was less confident so probably ooze negative vibes.
When I wear my suit, i feel very confident, like I am a professsional, I hold myself much much differerntly to when I am wearing my shorts, flipflops and unkempt hair!