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.
(..) for the Zarthans... ... or complete annihilation, if it fell into the hands of the Kylothians. A group of Zarthans made the journey, led by the Keeper of the Light... Lauranna. ... Princess Lauranna. Lauranna beseeched the Men in Black to help her hide the Light on Earth. (..)2002 Men in Black II