thus leading to the rich get richer result.
Not 100% true. Both MIC war tax benefit and Eco tax benefit depend on the size of your SIM income and how many buildings you have. Many smaller cities will benefit far more from both, because the SIM they lose to taxes is much less and the reward for owning the buildings is flat — it does not scale. You would be better off having 2 MIC's in a city that gets 1000 daily SIM income than having 5 MIC's in a city that gets 10,000 SIM income.
With eco tax, same idea.
Your math is disingenuous. 10,000 SIM = 10 x 1,000 SIM. 5 MIC = 2.5 * 2 MIC -- you are scaling by a different amount! Give me the numbers for a 10,000 SIM city with 20 MICs vs 1,000 and 2 MICs.
Also, your perspective is skewed. 1,000 SIM / day income is not a small city! That is 50x my current size!!
Then you only need 1 MIC and you will earn way more from it than you would pay in the taxes to support it.
And like the example I gave you with ECO, it's impossible for all the top players to fully offset their taxes by buying enough MIC. (While MIC distributes 80% of taxes collected, while ECO only distributes 25% of taxes collected, MIC is much more rare than solar and wind turbines. I would have to model the precise calculation to find out how far down the rankings the total MIC in existence could cover.)
Not true at all. As I showed with the ECO example in my response, all 'special' taxes are designed to benefit smaller players (because it's much more feasible for a small player to buy enough buildings to cover their tax burden).
The only benefit rich players get from high taxes is reduced SIMflation, and this is a benefit that all players get!