"constructive impact" is correct and usable in written English.
You can use it to refer to an effect that is beneficial or intended to improve a situation. For example: "The organization is proud of its constructive impact on its local community."
Or to put it more directly, drone critics are having a constructive impact.
The British locomotive had virtually no constructive impact on North American locomotives.
Given the amount of time riders spend at the unit, it is unimaginable that this atmosphere would not have a constructive impact – another marginal gain.
There is little doubt that information technology is having a constructive impact on the nation's capacity to produce goods and services.
"No organization has had a more positive and constructive impact on the Harvard Law campus than the Federalist Society," Minow said.
Korea's desire for influence in the region has also had a constructive impact on Asean itself by pushing trade and financial agreements between Asean and the three northeast Asian countries, which otherwise could well have foundered on Sino-Japanese rivalry.
Long-term, work-based learning could have more constructive impacts, especially since employers would be more likely to reap returns from training and providing responsibility to young workers.
This study provides a molecular explanation of cRGD treatment in breast cancer cells and set forth a constructive far-reaching impact on breast cancer therapy.
"We are very proud of our players and their strong commitment to work in our community to make a positive, constructive, and unifying impact".
The potential reduction of the environmental impacts of the case study has been calculated substituting the whole actual network by less impacting constructive solutions.
In scoring them it could decide, perhaps by vote, to factor in at least a portion of the growth and asset-price impact of constructive tax changes (assumed to be nil under current procedures).
