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.
(..) into Mordor? Yes. There's a path... ...and some stairs. And then... ...a tunnel. He's led us this far, Sam. Mr. Frodo, no. He's been true to his word. No. Lead the way, Sm'agol. Good Sm'agol always helps. (..)2002 The Lord of the Rings: The Two Towers
(..) ...and maybe you aren't. The White Wizard will know. The White Wizard? Saruman. See? See? We've led you out. Hurry, Hobbitses. Hurry! Very lucky we find you. Nice Hobbit. It's a bog. He's led us into a swamp. A swamp, yes, yes. (..)2002 The Lord of the Rings: The Two Towers