Heh, lotta equivation here revolving aroung the word "right," here. There is no reason to assume a liquidated damages clause, because that is far from standard. Under normal circumstances, a contract "employee" has the "right" to continue working, even if his "employer" orders him off the premises. Such a violations of his "rights" generally results in a damage award for breach of contract, but it does NOT end his rights under the contract.
Likewise, Williams can breach and refuse to come to work. Constitutionally (involutary servitude, and alla that there), they can't FORCE him to work, as a remedy. But they still have the right to "demand" his services and will be compensated if he refuses.