You seem to be conflating blameworthiness and predictability. True story: I know a guy who's a real scumbag, just constantly taking advantage of people who don't know better and abusing those who do know better. I fully expect this person to do a lot of contemptible things. My ability to anticipate his behavior doesn't make me like him any more for it. And the fact that the law doesn't punish a particular misbehavior doesn't shift the blame for his behavior onto the law.
In short: It is not ethical to do whatever you can get away with. You can choose to ignore questions of ethics, but if that's how you choose to live your life, expect to have a lot of people hate your guts. People treating you like a monster is a predictable consequence of living like a monster. This doesn't stop being true just because the choices are being made by multiple people under the banner of a corporation.
In short: It is not ethical to do whatever you can get away with. You can choose to ignore questions of ethics, but if that's how you choose to live your life, expect to have a lot of people hate your guts. People treating you like a monster is a predictable consequence of living like a monster. This doesn't stop being true just because the choices are being made by multiple people under the banner of a corporation.