I don't defend it but the specifics never bothered me. They cheated because their cars didn't meet new emissions standards. They were fine by the standards of the year before. So a bureaucracy just declared that a legal level of emissions was now illegal.

In my mind it's like suddenly declaring that blue cars are illegal, and they made a color-shifting car that is blue except when the authorities are looking at it.

It is wrong in the sense that it is normalizion of deviance, however. We live in a society and if we don't like a law or regulation the correct response is to get it legally changed, not to ignore it and cheat.