Politicians need to be held accountable for the actions. This is particularly true in Chicago, which has a history of corruption and corrupt politicians. Holding this particular person accountable and possibly making an example of them helps to slabs that Chicago has changed and this kind of political nonsense will not be tolerated.
If we as citizen are expected to trust in technology and its uses, those that abuse the technology should be punished aggressively. Ensuring the consequences are equal to the loss of trust and cost to those impacted is the only way to create a deterrent to this type of crime and restore faith in the system.
I suspect that this sentencing will have a domino effect in the corruption that exists in official positions of all kinds. Many people act, in their official capacity, inappropriately and the reward is always to better themselves. This particular service was intended to reduce crashes and injuries significantly and for a public official to use the service in order to meet his own need for greed - consequences for doing so shall be harsh.
I don't think that a 10-year sentence is too harsh for this Chicago official. He had a lot of power in his position, and instead of being a trustworthy figure, he used this power to take advantage of people through the crooked red light camera deal. With great power comes great responsibility, and he deserves to be punished.