I guess the problem is the investment
The military pays for the development of the Remote Ultra-Kill 9000 Drone that can carry 14 Mega-death missiles and 5 Maim-o-matic bombs, plus laser targeting etc. It can fly for 24 hours and does not always need a remote pilot (it has UAV capabilities at auto-target recognition).
It is, in short, a very nasty piece of work and can wipe out entire villages without any help.
It can carry a payload, fly itself and find "targets"...change the payload and change the purpose. Rebranded as Cuddles-From-Above its brethren are now sent out to scan remote area for lost skiers, hikers etc and drop aid to them, as well as report their position. They patrol the coast looking for oil spills, people in distress etc. Maybe they have "Don't panic" painted on their underbellies?
And that, unfortunately, is the problem. We are a potentially violent species, we elect/promote psychopaths to seats of power (no really, we do) and thus our ability for violence and domination is valued above our other traits. You can see this everywhere and in everything; short-term gain Vs long-term gain - short-term always wins. Even winning a war is a short-term gain because the cycle will repeat. I give you...well...the Middle East at the moment.
It would be nice to live in La-la-land, but we are stuck here in reality for just a bit longer.