'sole value' is correct and usable in written English.
You can use it when you want to express something that is the only thing of importance or worth noting. For example, "The most important thing to remember is that family should be our sole value."
"Her sole value was that she was the wife of the President," he said.
The sole value of this poem, he said after rejecting every single line, is the phrase "wide-screen sky".
But in Kendrick's narrow depiction of their culture-free realm, in which the sole value is money, the sacrifices involved appear trivial; the movie stacks the deck in favor of Christian faith.
"Great creations of taste and faith never express themselves primarily in terms of mere convenience and zeal," James wrote, "and all the waiting money and the general fury have, at the most, the sole value of being destined to be good for beauty when it shall appear".
The tableau of Clinton and Gore and their families standing side by side outside the governor's mansion in Little Rock signaled to the country that this ticket was young and vibrant -- and not wedded to the timeworn tradition that a running mate's sole value is someone who can balance the ticket geographically.
As a side note, few straight lines in the top left region of the log-log chart are due to malfunctioning of the vehicle sensor system that was not updating the sole value of the instant yaw rate.
The GMea was significantly correlated with the first axis of the PCA and shown to be appropriate for condensing the set of soil enzyme values to a sole numerical value.
Suppose, for reductio, that the sole semantic value of the name 'Mark Twain' were its reference.
Utilitarianism takes persons' moral status to be grounded on their capacity for well-being and suffering, and takes well-being to be the sole moral value.
It should be noted that the sole VFA value measured by the titration method (Table 3) agreed with the VFAS measured by HPLC (Table 4) only at very high acetate concentrations.
Indeed, there is good evidence that Russell thought that ordinary public language names have as their sole semantic value their referents and hence that simple sentences containing them express singular propositions, but that most of us at least cannot entertain those propositions and can only think about them under descriptions.
