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.
(..) I've seen him drunker. I've seen you drunker! And you've seen me.... He can lie in the gutter for all I care! I'm not a policeman. But he led a raid tonight on that shantytown... ...where Mrs. Kennedy got into trouble this afternoon. A lot of those shanties were burned. A couple of men were killed. (..)1939 Gone with the Wind
(..) ...to say "yes" and "no" and raise a passel of mealy-mouthed brats just like her. You mustn't say such things about Melanie. Who are you to tell me I mustn't? You led me on, you made me believe you wanted to marry me. Now, Scarlett, be fair. I never, at any time-- You did, it's true you did! (..)1939 Gone with the Wind