In response to the original post (I may read all the replies and comment on them after):
In my view knowledge and understanding can be possessed in isolation from the flow of life, but if you possess wisdom then by definition you know how to use it because wisdom pertains to the active process of being, not a passive concept of knowing about being.
Your recounts of your stuttering and realizing people are really just assholes are amusing, I'm sure many of us can relate in terms of how we each discovered the shitty truth about people in different ways. It's pretty crazy!
But then you go on about how a person with wisdom such as yourself proceeds in life in their thoughts and interactions about themselves and others, always putting yourself on that pedestal. I've made many similar statements in the past, and I recognize you're just desperately trying to find a way of conveying that which is so difficult to convey! The fact that you *are* so different in your thoughts and deeds, and that this point of divergence *is* most critical to understand.
If you want to recount your life's journey that's fine, it's an interesting life and can be an interesting read. But if you want to persuade others, may I suggest that with your words you focus not on the external--it's bound to only offend and dissuade--but on the internal. Delve into the inner world of your being, explain how your thinking or lack thereof works, explain how your awareness works, explain how one can be present in the now.
Admittedly such is almost as daunting a task as calling someone a fool and in the same breath teaching them how not to be, but it is possible with the right words and, indeed, with true understanding of what it means to be self-realized and enlightened.
So, where do you stand, concerning the unexpected appearance of what could be wisdom?
Are you open to consider something you maybe don't yet know?
Or compelled to ridicule it, out of hand?
You're trying to hook those who already have a glimmer of Sight, but at the same time you're slapping them down. It makes a skeptic wonder if you really have that much to offer, after all.
To take a page out of my book(-in-progress), try not to be so standoff-ish and try to explore a little more the inner equations rather than the outward appearances:
The problem is not that the standard person almost always has more pressing concerns than the great mysteries of life, but that questioning them about their prioritization in this regard will almost always reveal their prioritization is based on premature conclusions. The problem is that while on one hand the standard person justifies their priorities in life with admittedly speculative logic, on the other hand the refinement of said logic almost always fails to rank highly on their list of priorities. Questions in life deemed to have slim likelihood of ever being successfully answered, such as the great mysteries of life, these questions typically do not get pursued, for realistically there is only so much time in a day and nobody can possibly give their attention to every single potential learning opportunity that comes along. And this would be just fine, except that the question of determining what exactly is the degree of likelihood a given question could ever be successfully answered, this question, having to do with the great mystery of the human mind's capacity, is itself typically viewed as a question that has a slim likelihood of ever being successfully answered! So the average person has settled into a compromise position that appears logical with a bent towards practicality, but that is actually founded on excuses, covering up contradiction and circular logic, for the sake of remaining in safety and comfort rather than confronting the overwhelming dilemma of existential uncertainty head-on.
Don't try to break them emotionally, rather twist their reason and their tunnel realities into such a ball that their little heads explode! Ever towards the breaking point, at least then they have a chance (or go crazy). Oh and if they can't get through a thick block of text, then, um, don't bother hahaha.