Of course, there are ethical corporations, Q. Most of us are smart enough to know that, and we shouldn't have to explain that every time we say something. There are good corporations and there are corrupt corporations, and that has always been the case.
Still, there seems to have been a downturn in corporate ethics in the last thirty years, at the same time that politicians have tended to deify corporations.
I think it started with the Reagan-Thatcher economics of the 1980s, when the Conventional Wisdom dictated that business could do no wrong and government could do nothing right. As a result, those nasty government controls were relaxed, and business was allowed to do what it does best - become corrupt (I suppose the same is true for government: without control, it becomes corrupt). So, we have had one huge corporate scandal after another since the 1980s.
Barack Obama is a ray of hope for many of us, but it has yet to be seen whether he can do anything to stem the corporate corruption of the last thirty years. Then again, many of us once thought that Tony Blair was a ray of hope....

-Joe-