There is more than one kind of casualty.  There are life and limb casualties—human beings murdered and maimed out of hate, greed, lust, jealousy, or for no other reason other than to simply to kill or hurt.   
There are other casualties—business casualties of lost wealth and wreaked dreams.  These are casualties of time and technology that clear the space needed to build the future—a process sometimes called “creative destruction”.
   
I’m an author, and I deal with both—murder and mayhem as a mystery writer, while as a as a business author I write about prospering where the only constant, change, is destroying whatever already exists.  Sometimes I combine both mystery and business survival into a single story.