If truth did not matter to them, they’d have no reason to try to manipulate others perception.
Their “truth”... is what they want YOU to believe...
And that has nothing to do with truth... save perhaps in the degree to which it obtains its opposite ?
Why and how would it be useful... to get people to believe the opposite of what is true ?
Of course they want you to believe THEIR “truth”, that makes it MORE “truth” to them. The sad part is, they really do believe their own made up “truth” most of the time.