> Basically nobody ever died from leaky pipes
I know you're probably intending to only remark on leaky water pipes, but:
The New London School explosion was caused by a leaky pipe. It killed 295 students and teachers, and led to the inclusion of smelly thiol in natural gas, as well as the Texas Engineering Practice Act.
Even leaky water pipes kill people - just google Legionnaires disease.
A drip or stream from a leaky pipe isn't gonna do it. You need to get the bacteria into the respiratory tract to get legionaires disease. And even then a specific temperature water is necessary for it to grow.
A dehumidifier (or an HVAC system, which is where the name of the disease came from) is more likely to give you legionnaires disease than even the most substandard plumbing.