"lasting benefit" is a correctly formed phrase and can be used in written English.
You can use it to describe something with a long-term advantage, such as an investment that will give you a return for years to come. For example, "The tax break brought a lasting benefit to the company."
This could be a positive development of lasting benefit.
If they are right, the United States enterprise here could still achieve something of lasting benefit to Iraq.
But it should be done on a scale that is sensible and in a way that leaves lasting benefit.
(To his great distress and lasting benefit, he was deployed to the Caribbean, instead of to the Pacific).
Only when such a political process is under way will military operations to reconquer the desert bring lasting benefit.
NEW ORLEANS, March 26 — Many heart patients routinely implanted with stents to open arteries gain no lasting benefit compared with those treated just with drugs, researchers reported Monday.
As he develops his plan, the mayor must address these conflicting demands if he is to find solutions that bring the city lasting benefit.
That event shook Britain, but also spurred its prime minister, Winston Churchill, into an action that has brought lasting benefit to Orkney.
Surgical approaches to improve lymphatic flow through vascular reanastomosis have been, in large part, unsuccessful, but controlled liposuction affords lasting benefit in selected patients.
Prone to depression, in his 30s Greacen underwent psychotherapy and was convinced that he derived lasting benefit from the series of 12 LSD "trips" prescribed.
Some climate experts have warned that such a move could be unhelpful, as it could encourage a rush of short-term policies that would have limited lasting benefit.
