I think at least one Star Trek show did this. But yeah, stun blasters are tragically underused. Particularly by police: even the dystopia of Pyscho Pass has their guns set to stun as the default and they have to get permission to use the kill mode. Or Jedi even: what is more civilized about hacking someone's arm off compared to stunning them? I'm not convinced: Scholar Visari oppressed and killed more Helghan than their "enemies" ever did. Not to mention that starting a war over grievances of the distant past is usually considered unjustified.