The morale high ground is apparently bolstered by the (only recent) advent of accurate targeting allowing atrocities like the bombing of Vietnam, Laos and Cambodia to fade from memory.
One side effect of this is the increase in the Wests use of assassination (extra judicial killing) as a tactic, it does this using drone strikes – 57 under Bush, 563 under Obama, even more under Trump and with less disclosure
Older information tracking them
https://www.middleeasteye.net/news/trump-afghanistan-middle-east-strikes-civilian-deaths
The need for verification means that drone pilots, unlike their bomber flying colleagues, must get detailed shots of the corpses for verification purposes – this has been reported to have damaging psychological effects on some of them.
Then of course there are still mistakes (wrong target or wrong intelligence) ad the drivers of those killed in drone strikes may be pressed into service, they of course die with the target, they have families who may be radicalised, regardless of the ethics this increasingly used tactic has serious drawbacks.
https://www.middleeasteye.net/news/trump-afghanistan-middle-east-strikes-civilian-deaths