Without giving it any thought, it would be hard to think of a better fit than a city politician running the local chamber of commerce. After all, the goals of a chamber of commerce and of a city government are pretty much the same:  security, good government, good services, low taxes.

Some local government ethics codes include a provision prohibiting officials from acting outside of their authority, which is especially directed at council members interfering in a city or county's management. I don't consider this a government ethics issue, since it does not necessarily involve favoritism, the official's personal interest, or anyone's personal interest. It is most often just a matter of the official trying to get things done through improper channels, which is a political issue that should be dealt with in council rules or in standards of conduct.

It's always nice to know that your discipline is at the heart of what it means to be human. In Tuesday's New York Times Science Section, Nicholas Wade wrote:

Biologists have little hesitation in linking humans’ success to their sociality. The ability to cooperate, to make individuals subordinate their strong sense of self-interest to the needs of the group, lies at the root of human achievement.