There is never vulgarity in a whole truth, however commonplace. It may be unimportant or painful. It cannot be vulgar. Vulgarity is only in concealment of truth, or in affectation.
But, the relationships that I see work - As long as they're telling the truth, and saying the things that you don't ever want to have to say to another human being.
It may not be too late, whatever happens, if our President, Lyndon Johnson, knew the truth from me. But if I am eliminated, there won't be any way of knowing.
When a scientist is ahead of his times, it is often through misunderstanding of current, rather than intuition of future truth. In science there is never any error so gross that it won't one day, from some perspective, appear prophetic.