As for the treacly 'social contract' crap, keep it. We used to just be considerate of others and have manners.
Most of the weasels who push 'duty to society' are just trying to get their foot in the door to shaft someone.
There’s nothing treacly about the social contract. It’s a concept that’s been around a long time, and we back when we were a polite society that held doors open for each other and didn’t stage flash mobs to vandalize and rob each other was when the social contract was strong. Just being considerate and having manners IS the social contract, the difference is my way of saying it is 15 characters to type and yours is 38 characters. I didn’t say anything about a duty to society, just pointed out how and why these guys are douchebags who got what they deserved. They proved they couldn’t handle life in polite society (aka couldn’t follow the social contract) and got kicked out of it.