no, it has to do with the mentality of the US which is throw money at the problem. I can't remember the exact statistic but we spent 10-20 billion dollars every day to fight WW2.
The reasoning being that if you throw enough money at the problem it will go away, this kind of thinking off puts other nations because they don't have the same amount of money the US has.
40k is my 2nd favorite sci fi series I just love the darkness. who ever designed the Maus deserves hero of socialist labor for helping the Soviets ending the war early.but if we want to talk about unstoppable tanks well the Maus cant penetrate this tank anywhere from the front.