Wisdom is the eyesight (degree of visual acuity) of a consciousness.
Your knowledge is what you've heard and experienced and accepted through your individual consciousness.
The issue is that knowledge can be right or wrong – because people hear what they want to hear, generally speaking, and are not aware of the difference between their thought and the reality. Plus, people understand the same things in different ways, when they do not have sufficient wisdom to see the thing itself.
The problem is that some conspiracy theories end up being completely true. Others do not.
My question to you is, given that 'theories' are commonly defined as things still unproven, by what criteria do you distinguish a wacky conspiracy theory from one that seems plausible?