People are often the products of their environment. But often views evolve over one's lifetime.
If ten years ago, someone were to ask me whether gay people should marry, what would I have said? What came out of my mouth would've been the product of JW indoctrination. It would be very different than what I would have said now.
I doubt history will ever quote me about anything, but if it does, I hope I'm on the right side of it.