The "AI" that is being used to find cures for cancers is not the same "AI" that is being used as an excuse to fire people, especially programmers.

The latter is LLMs. Generative AI, chatbots, etc.

The former is analytical AI: machine-learning systems using computer vision techniques to recognize patterns in CT scans (and similar) that humans aren't precise enough to pick up on.

They are derived from similar principles, but no one is trying to sell DetectMelanomaChat as a replacement for you or me.