I saw an add for a medicine that was new on the market and my friend who could use the meds, was unaware of its existence.

Now, after a doctor’s involvement, my friend is on the new med and it treats their condition better and the quality of their life is improved.

This happened to me as well, and during a football game ad (which I generally skip and despise highly). The signal-to-noise ratio is extremely low with ads, but they indeed can be helpful sometimes.