At a certain point in history, gangster business cards were actually in existence! There was special place in time not too long ago, where your local thug was courteous enough to leave his calling card behind after he robbed you. Those were the days, where if those organized criminals actually harmed you, they would leave a clue behind. Many of the business cards displayed here were actually printed locally in their neighborhood.
Implications - Citizens in modern society are seeking out ways to take on a more professional tone. Designs that help to do this are appealing to those who aren't normally associated with a clean-cut look. Companies could focus on this aspect when coming out with their newest items.