"contrary to its purpose" is correct and usable in written English.
It can be used when one thing is done or using an object for something other than for what it is intended. Example sentence: She used the hammer to remove a nail from the wall, contrary to its purpose.
Damage of bagged cement emulsified asphalt (CA) mortar tends to create voids underneath the track slab and will reduce the carrying capacity of the track structure, which is contrary to its design purpose of providing a long-term, safe and reliable service.
The report warned, "No law will be effective if the agency responsible for its enforcement interprets that law contrary to its basic purpose and intent, administratively creates gaping loopholes and tolerates widespread evasion of the law".
But contrary to its stated purpose, the exhibition, by pairing photographs by subject, elicits thoughts not of Atget's artistry but rather of his taxonomic mania.
The subpoena states that investigators are looking into whether the inaugural committee's funds "were wasted, mismanaged and/or improperly provided private benefit, causing the committee to exceed or abuse its authority or act contrary to its nonprofit purpose," according to the Times.
His land legislation, especially the clause de donis conditionalibus in the miscellaneous Second Statute of Westminster (1285) and the statute Quia Emptores (Third Statute of Westminster, 1290), eventually helped to undermine feudalism, quite contrary to his purpose.
"While Alvogen takes no position on the death penalty itself, Alvogen's products were developed to save and improve patients' lives and their use in executions is fundamentally contrary to this purpose," the company said in its complaint.
"The irony here," he added, is that "if the procurement is done without full competition and transparency, it runs directly contrary to the purpose of the Medicare.gov site, which is to encourage competition and transparency in the drug market".
"It would be arbitrary and contrary to the purpose of entitlement to paid annual leave to grant workers the right to paid leave only if they are already unfit for work when the period of paid annual leave commences," the court ruled.
It is evidently agitation of terrorism quite contrary to the purpose and nature of the Berlin International Film Festival".
This absolutely runs contrary to that purpose".
