Exactly.
Or wasted resources on Concentration Camps and Death Camps.
Or building the over-complicated Panther and Tiger instead of just a Germanic copy of the T-34.
Or failing to keep U-Boat production up and failing develop the Type XXI boat in time.
Of course, in the end, the Germans faced not one but THREE nations with greater industrial capacities and population resources. The amazing part is that they did so well for so long!
My high school Physics/Chemistry teacher was a captain in the US Navy and served as a submarine skipper during WWI and WWII. After WWII he took a type XXI U-Boat for a shake down and subsequent refit for service in the US Navy. He loved the type XXI boat.