Because he was going to use Madeline to assassinate Blofeld. At the beginning of Immaculate Conception, it's told that young Madeline's mother was killed by a masked man and her father, Wyatt, committed suicide. Madeline accidentally falls into an icy lake while running away, and the masked man, Saffin, rescues her, after which Saffin tells Madeline that by saving her he is asking her to assassinate Blofeld.
Saffron's Personality
The few strokes of Saffron's "villain" portray only a few silhouettes of him, and the reason why I don't think he's a villain is probably due to the fact that he's a foil for Blofeld in "Ghostbusters". But Saffron is still the least villain-like of the James Bond franchise starring Uncle Dan that I've seen, and my favorite male character other than the protagonist.
The shadow of the Ghostbusters continues from "Casino Royale" to the beginning and end, as the layout of the BOSS, Bruffier hands a lot of human life, the ZF high level was infiltrated all over the Mi6 is also helpless, and Bruffier does not distinguish between the enemy and me, even if their own subordinates will also be eradicated, and even let go over the subordinates killed each other, and then cleaned up their families.