You can change a lot of lives and never get famous. Ask any good nurse or school bus driver.

Recognition and impact are only loosely related. A great deal of the work that actually holds lives together happens without an audience, in roles nobody writes about, done by people whose names those they helped may never learn. The absence of attention says nothing whatever about the size of the effect.

Notice who does that work around you and say something specific to them. And when weighing your own choices, separate two questions: what you want to be known for, and what you want to have done. Only one of them is fully up to you.