Arthur C Clarke wrote a nice short story on the topic, called "Superiority". Worth reading.The money and human capital spent on the V-1, V-2, Me 262, Arado 236, Tiger and Panther tanks, artillery on railroad carriages that required four parallel sets of tracks, and other so called super weapons, could have been used to build thousands of Panzer Mk IV tanks and StuG III tank destroyers.
The ultimate cause of our failure was a simple one: despite all statements to the contrary, it was not due to lack of bravery on the part of our men, or to any fault of the Fleet's. We were defeated by one thing only—by the inferior science of our enemies. I repeat—by the inferior science of our enemies.