The phrase "a legitimate purpose of" is correct and usable in written English.
It can be used when discussing the valid reasons or justifications for an action, policy, or decision.
Example: "The committee must ensure that any proposed changes serve a legitimate purpose of improving community welfare."
Alternatives: "a valid reason for" or "an acceptable aim of".
The literary scholar Tsubouchi Shōyō was led by his readings in European fiction and criticism to reject didacticism as a legitimate purpose of fiction; he insisted instead on its artistic values.
The restraint has a limited scope of preventing only mortgaging or encumbering, a limited duration of the Albys' lifetimes, and a legitimate purpose of keeping the property in the family.
We need to rehabilitate public interest as a legitimate purpose of public policy.
Unless one believes that the definition of what makes a cruel and unusual punishment is trapped in its 18th Century meaning, the need for proportionality between harshness of a sentence and the extent to which it advances a legitimate purpose of the criminal law is essential.
Mylan said its agreement with Profarmaco had a legitimate purpose: to guarantee an adequate, uninterrupted supply of chemicals.
The use of these publicity media bears no real and substantial relation to any legitimate purpose of a congressional investigating committee.
There was no warrant for characterizing him as 'unfair' or opposed to any legitimate purpose of the tile layers union or as unjust to union men.
That decision was based on several important considerations, one of which was that, and I quote, "neither party can reasonably assert that it is actively a belligerent or requires to exercise the right of visit, search and seizure for any legitimate purpose of self-defense". In our opinion, this principle is equally applicable to the Suez Canal and to any waters outside the Canal.
In a radio interview on Wednesday, Abbott played down suggestions forcing people to prove a legitimate purpose was effectively a reversal of the presumption of innocence.
It might also be argued that challenging interviews on matters in which there is an overwhelming consensus in Westminster - but not necessarily among voters who pay for both the licence fee and the government's energy policies - is a particularly legitimate purpose of public-service broadcasting.
The nonbreakup provisions of the judgment reflect three primary objectives, none of which is warranted by the violations found by the court and none of which serves a legitimate purpose under the antitrust laws.
