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.
(..) by the defendant. There is circumstantial evidence to indicate that... Mayella Ewell was beaten... savagely... by someone who led, almost exclusively, with his left. Tom Robinson now sits before you, having taken the oath... with the only good hand he possesses... (..)1962 To Kill a Mockingbird