The phrase "a wider section" is correct and usable in written English.
It can be used when referring to a broader part or area of something, such as a physical space, a topic, or a demographic group.
Example: "In our study, we focused on a wider section of the population to gather more comprehensive data."
Alternatives: "a broader segment" or "a larger portion".
This is true, but this wealth of knowledge and research should be available to a wider section of society.
The violinist Aaron P. Dworkin, Sphinx's founder and president, said from the stage that as a biracial classical musician he had also experienced isolation, and that classical music would benefit from the involvement of a wider section of society.
Many universities will also make bursaries available to a wider section of students than this and these are paid in cash or in kind (accommodation, books or a bike, perhaps) as universities try to tempt you.
This, alongside the new dynamic of the creation of rights and the opening up of institutions to a wider section of the population, has provoked an opposite movement among the inhabitants of Brazil's "Belgium".
The radiation of five Pacific salmon from a common ancestor, additionally, could also cause significant geomorphic change by altering a wider section of the profile for a given distribution of grain sizes.
But the expansion of Memphis's burial grounds forced the creation of "a more structured bureaucracy, opened up, for the first time, to career professionals drawn from a wider section of society and promoted on merit", writes Toby Wilkinson in The Rise and Fall of Ancient Egypt.
No single king apparently ever managed to control a wide section of the land.
Lubitz last visited at Christmas, Müller said, adding: "The club attracts a wide section of society.
First, the Islamic Republic has disenchanted a wide section of the population.
We represent a wide section of Tower Hamlets - people of different interest groups, different age groups, different faith groups.
