Recall when the Mossad assassinated someone in a Dubai hotel: https://www.youtube.com/watch?v=7d9KDysPbZ0 https://en.wikipedia.org/wiki/Assassination_of_Mahmoud_Al-Ma... The only reason I point this out is because many (most?) techies have a natural aversion to helping out this sort of thing. It's totally fine if you don't. But it's easy to forget the end result.
The end result of the Hamas assassination was that a violent and dangerous person who led the killing of countless civilians is dead. So yes, let’s not forget the end result — a wolf was shot before he could attack again.
I am not going to comment on intelligence services in general, but the example you provide is ironically, a counter argument for the point you seem to be attempting. You seem to be suggesting that techies generally would want to work to preserve life rather than take it and, with the Dubai operation, that’s exactly what happened: lives were saved by taking down a dangerous man with a history of leading the killing of innocent people.