His volunteer work in the hospital 'led' him 'to' a career in nursing. = His volunteer work in the hospital 'led' [='inspired'] him 'to become' a nurse.
We've been 'led to believe' that the labels on food items disclose all ingredients, but it's becoming clear that this is not the case.
His volunteer work in the hospital 'led to' a career in nursing. = His volunteer work in the hospital 'led to' him becoming a nurse.
(..) It's okay. It wasn't my first pantsing and it won't be my last. And you were right about my motives. I was hoping to establish a relationship with penny that might have someday led to sex. Well,you got me out of my pants. Anyway,I've learned my lesson. She's out of my league, I'm done with her. (..)2007 TvShow: The Big Bang Theory Title: Pilot Season: 1 Episode 1