this would be quite a huge game changer, so probably nothing we would change on all servers tomorrow just because the idea sounds good right now.
but yes, your idea does sound good and you got some valid points there, it's at least worth to try it on on some servers and see how the community likes it.
however, note that some of your arguments would also be affected by the other idea to give scores (or "XP") on a quarterly base (originally brought up by AlexAlex on
this thread). maybe we can combine those ideas and create some mixture of it.
would appreciate if you could also contribute to this other thread. with my work on the basic CityBuilder mechanics slowly reaching its end i will start to put those score topics into focus, so we got to get a more complete picture of our ideas soon.