Well if you believe in an objective value of truth then how do you reconcile that with the subjective theory of value in economics? Valuations are made by an individual, that includes, rice, dollar bills, potatoes, and even truth. Truth, like rice and potatoes, has objective properties/qualities, but also like rice and potatoes- has no objective value.
Someone could say "rice and potatoes have no objective value" with a mouth full of potatoes and a stomach full of rice and a reply like: "so you're saying rice and potatoes have no objective value while using them for subsistence," would not be a logically consistent argument against his assertions.
Eh, Leo explained it better than me... I think his logic is seamless and recommend rereading it if you really think truth has an objective value.