I agree. It's an attractive feature of David Hare's screenplay: he's covering the usual spy stuff, but with the realism of showing that it does pay to be considerate of others. This is more interesting than the usual toddleresque Bond fantasy of just barreling through, doing whatever you please, and having that work out well.
That what I like about the Johnny Worricker character. He's honest about "using" regular people. At the same time, he has real emotional relationships with them and he tries to make sure they're in a better place after interacting with him. Even though he "gets" the bad guy, he doesn't come across as a slimeball.