[kingkawn]

Bacterial killing is not inherently valuable since so much of your homeostasis is regulated by native bacterial flora, both on the skin and inside the body. It could be that even beyond the skin damage of anti-bacterial soaps, that regularly wiping out your endogenous bacteria could increase certain infectious susceptibilities.

This has been seen with C. difficile infections that occur after broad-spectrum antibiotic administration. These infections are 50% fatal when treated with more antibiotics. Use of fecal transplants, aka the poop of a healthy person put it into the c. difficile patient's stomach, seems to drop that fatality rate to less than 1%. The impact appears to be from the reestablishment of bacterial homeostasis in the gastrointestinal tract.

Study is still ongoing on the broad efficacy of this method, but regardless there is at the very least a substantial subset of the population who are demonstrably at risk from the loss of native flora due to bactericidal treatment.