Once again, Voltaire:
Love truth but pardon err.
But then, what if the an err is not committed but rather a lie?
When falsehoods are made, does a pardon still apply?
Cherish those who seek the truth but beware of those who find it?
Why is knowing the truth a dangerous thing?
Because knowing the truth enables one to recognize untruths—to see through the words as to intentions, motivations.
Yes, knowing the truth is a dangerous thing. One may outlive the unjust consequences of falsehoods against them but will never of falsehoods made.
Fool me once, shame on you; fool me twice, shame on me.
Shame however may not happen; that is, that a liar may deny they lied or otherwise attempt to cover-it-up and, depending on their degree of power, they may simply scoff at any allegation no matter the credibility.
The abuses of power go beyond the lie alone, creating a wake of chaos and corruption depending on the size, the strength of the culprit.
If the liar lacks a conscience—or is incapable of shame--then anything is possible.
How far one goes in wreaking havoc and causing hurt depends on their willingness to be accountable, to take responsibility and deal honestly with the matter—to come clean!
If/as the matter remains open and truth obfuscated (ostensibly by their withholding) the destructive potential rises metastasizing like cancer untreated.