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.
(..) JIMMIE: % WOLF: Your wife Bonnie... comes home at in the a.m., is that correct? JIMMIE: Uh-huh. I was led to believe if she comes home and finds us here... she wouldn't appreciate it none too much? JIMMIE: She wouldn't at that. (..)1994 Pulp Fiction