Is that theory supported by any evidence? My guess is that under Obama and drones, fewer civilians have been accidentally killed then under say Clinton and cruise missiles.
This isn't a theory specific to the premise of drones. It's a natural human tendency. It's why school-yard bullies exist.
In the absence of an principled, ethical personality, the discovery of impunity, combined with any obvious benefit obtained by way of abuse precipitates unrestrained abuse.
A greedy person that can get away with something will act in favor of obtaining an object of desire.
