You think Hitler was bad news? If Bonhoeffer & Co had succeeded its quite possible Reinhard Heydrich would have taken Hitler’s place.
Unintended consequences...
It’s not too likely Heydrich would have taken Hitler’s place after the assassination attempt in 1944 since Heydrich had been killed in Czechoslovakia in 1942.
Heydrich was all ready dead, assassinated by Czech partisans - but point well taken.