Nobody takes death in comic books very seriously. Honestly, nobody should.

It is long comic book tradition to die--until a writer in need resurrects you. (Or the just restart the whole you storyline in a universe breaking way. No, I'm not bitter.). So long that even in the 1930s people weren't taking things seriously.

One of the first features of Military Comics was The Death Patrol. It really takes confidences in your skill you put Death in your name.

Meet Butch the safe cracker; Gramps the pickpocket; Hank the rustler; Slick the a con artist, and millionaire Del van Dyne.