Secondly, the collateral damage is not the goal of the drone strikes, in fact they use drones to reduce the amount of collateral damage(for reasons beyond precision munitions). If you run the numbers, the amount of collateral deaths are far lower than conventional airstrikes. The deaths of journalists is/was the explicit intent of the power structure in Russia because it furthers their political goals.
Second, terrorism is not an existential threat. In fact, there is a strong argument that the drone strikes actually increase the number of "terrorists" and make a successful strike against the US more likely, not less.
So the way I see it, Russia kills journalists who threaten the existing power structure, and the US kills more-or-less random people in order to bolster the existing power structure. Two, equally-disgusting, sides of the same coin.