They also say they're really pleased when you liberate their workers, but if they already don't like you, they're not going to be pals right away.
Also, revived isabella probably woke up, looked around and said, "hmm, maybe I would live longer if I was better friends with this conglomerate." Then she's issued the ultimatum, "dear friend isabella, please denounce Dale, or we will denounce you". She can apologize to you later since you're the forgiving kind, liberating her and all, right?
Also, it makes me wonder how Lazarus felt, when he was brought back, only with the prospect to die again later, still with leprosy and not enough tech for one rifleman.