Singer makes a really good point about how technologies can magnify harm:
"Applied to a whole system, the consequences of misperceiving risk get multiplied across the population [...] The risk perception of a person with power can create dangerous conditions for us all."
This is absolutely something us software devs need to grapple with. Silicon Valley is obsessed with scale, but as tools and systems scale, so does the potential harm of what might otherwise be small errors and oversights.