Of course. If I had to pick an all-time favorite jazz score, it would probably be I Want to Live. And, yes, also with Legrand and Mancini in terms of the last standards.
The thing with Mancini, though, was that jazz scoring really crystalized with Peter Gunn, and as a result, all of these other private eye shows started using jazz. Also, the Peter Gunn album was a massive seller, and as such, it must have been a gateway into jazz for many viewers and listeners.