Some conspiracies are true others not.
Naturally.
Sometimes the true ones are exposed via well documented facts,
Define a "well documented fact."
When this latter happens we are left to circumstantial evidence,
Define "circumstantial evidence."
our confidence in those who say the conspiracy is true, or not.
"Confidence" is a moot point since, and I assume, that the juxtaposition between "well documented fact" and "circumstantial evidence" also serves to produce "confidence."
Greed being the primary reason for covid vaccine or all other to exist I do not believe is truth.
That is your prerogative.
When we have evidence of them saying that was their primary reason, then we can only accept their word at face value,
Fair enough.
unless there is circumstantial evidence to dissuade us from believing their comments are not true.
What about patents for the virus which stem as far back as the 80's? What about counterproductive lock downs and mask mandates? What about the media's exaggerating and outright lying about the virus's epidemicity? What about the disinformation pedaled by the White House's Chief Medical Advisor, Anthony Faucci? What about pushing a vaccine only months after trials, when the effects of a vaccine aren't typically produced until after a decade of trials? What about the lack of investigation into the Moderna vaccine and how this vaccine "teaches" cells to produce COVID spike proteins? What about the fact that an overwhelming majority of unvaccinated individuals have survived this COVID "epidemic/pandemic"?
But, you can believe whatever you want.