Square Root of 2, why do you say that the pint is not to be embarrassed? What about those being punished? The point is that the reward should be a deserved reward and not a Matnas Chinam, which is not well received due to the Nahama Dichisufa concept.
As for my point of Bechira, you have to truly envision such a universe before tossing the explanation. If the fact is that there is no concept of a Cheit (whether preordained or selective universe) then there is no active Bechira. (Yes, I know your point of view, which is why I worded it that way.)
Additionally, there is the point that this world is meant to remain murky and not final. By rooting out the evil Hashem would effectively be fixing the world, not us. I mentioned this in the above post as well.