Any public official using a service or product intended for the greater good of the general public for private gain is unethical, to say the least. We all know these types of ways to better one person exist and to recognize it in the legal system would restore some integrity to the offices and the people who hold those positions.
The Chicago officials involved made some unethical decisions that they should not have made. They were most likely swayed by peer pressure, the sense that they could get easy money and they would not get caught because no one would ever know or care. These thoughts and actions are all unethical.
Yes, I believe that the Chicago officials were involved in an unethical deal concerning the red light cameras. Placed throughout the city, the red light cameras create an undue burden on drivers by altering the light timing, creating unsafe driving conditions and also target a population of the city that is overtaxed and poverty-stricken by slapping harsh fines with a difficult appeal process.
Yes, all of the Chicago officials involved in the dirty red light camera deal were crooked and unethical. They deserve to be punished, and I'm glad that some of their sentences are quite severe. They took advantage of Chicago taxpayers by getting involved in this dirty deal, and their selfishness should not be ignored.