If you don't want the Luftwaffe to have as many coffins, then equip it with Canadian pilots. The Canadian pilots were able to master the Starfighter.
Even the bribery, whilst contemptible, probably doesn't deserve as much blame as it gets. The F-104 was probably about as good an aircraft as existed in NATO for the German requirement at the time. It was just a very challenging requirement, and there were shortcomings with German pilot training.
Unless you've got no sense of self-preservation, you don't take a bribe to tip the scales in favour of something totally unsuitable. You convince yourself that the difference between Competitor A and Competitor B really isn't
that much, they could both do the job well enough, so it doesn't really matter which one you pick... but Competitor A is offering you a nicely stuffed brown paper envelope. If you're properly corrupt, you then go to Competitor B and point out that it's a really finely balanced competition.... then, once you've got two fat wads of cash, make the decision you'd have made in the first place.