Perhaps the most surprising aspect of the Libor scandal is how familiar it seems. Sure, for some of the world’s leading banks to try to manipulate one of the most important interest rates in contemporary finance is clearly egregious. But is that worse than packaging billions of dollars worth of dubious mortgages into a bond and having it stamped with a Triple-A rating to sell to some dupe down the road while betting against it? Or how about forging documents on an industrial scale to foreclose fraudulently on countless homeowners?

The misconduct of the financial industry no longer surprises most Americans. Only about one in five has much trust in banks, according to Gallup polls, about half the level in 2007. And it’s not just banks that are frowned upon. Trust in big business overall is declining. Sixty-two percent of Americans believe corruption is widespread across corporate America. According to Transparency International, an anticorruption watchdog, nearly three in four Americans believe that corruption has increased over the last three years.

We should be alarmed that corporate wrongdoing has come to be seen as such a routine occurrence. Capitalism cannot function without trust. As the Nobel laureate Kenneth Arrow observed, “Virtually every commercial transaction has within itself an element of trust.”

The parade of financiers accused of misdeeds, booted from the executive suite and even occasionally jailed, is undermining this essential element. Have corporations lost whatever ethical compass they once had? Or does it just look that way because we are paying more attention than we used to?