The most obvious category are things that have already been made illegal. Like Ponzi schemes. Or waste management companies that engage in illegal dumping. Or the Chinese food companies that were substituting melamine for edible protein.
From there you get more subtle categories. Cigarette companies are legal, but sinister. People making magnetic healing bracelets: Do they believe in what they're selling? Some do, but I'm sure some just ship whatever sells. There are many financial companies that I expect are effectively sociopathic, in that as long as they make a profit, they don't care what happens around them.
An interesting parallel is the charm and manipulative ability that people associate with sociopaths. In corporations, that's the advertising and PR departments.
I wouldn't say that. Everybody is at least a little charming and manipulative, but that doesn't make everybody sociopaths. It's the lack of conscience and the focus on self-gratification.
So what is a person (or corporation) when they can clearly distinguish between right from wrong (has a conscience within their specific social context), but focuses on self gratification (or profit)?
I don't think being able to distinguish right and wrong is sufficient to say that somebody has a conscience. They also have to care. In particular, sociopaths are characterized by a lack of empathy and remorse, not by a lack of understanding.
Anyhow, if you tend a little in that direction, you're an asshole. A lot, and you're a sociopath. That's my view, anyhow.