My experience of seeing these types of personalities work together is that they turn on each other eventually. In some cases literally kill each other. The so called "toughness" is a facade. They are easily offended and have incredibly thin-skin. Constantly paranoid, they believe everyone is out to get them, or to take something away from them. Toddler mentality. So when they spend time with like-minded individuals, it just fuels the fire. So many cons and con artists in the mix so someone will surely get screwed.

Whether they were born incapable of empathy or it was beaten out of them as children (empathy = weakness in sickos world) it always ends badly for these people. They bring it on themselves.