Because you wear a Suit it doesnt make you a Gangster. Drug Runner's arent Gangsters, The Movie's portrayed Gangsters in Suits because they had alot of money. Gangsters work for Organization's, Drug Runners are wild.
Wearing a suit is just as much psychological as it is a status statement. If you dress the part, you more than likely will have more confidence. Just like in any profession this will lead to you doing a better job most of the time.
Say you want to be taken seriously? What kind of outfit will gain you more respect? A stylish suit or a pair of oversized baggy jeans that are falling off your ass and a dirty t-shirt?
Wear the suit proudly I say.
P.S. Don't forget to shave and put on your deodorant either.