The phrase "influential role" refers to the significant impact or influence someone or something has in a certain situation, task, or group. It means that this person or thing plays a crucial part in shaping decisions, outcomes, or opinions.
The church deserves a more influential role in shaping black theology. (religion-online.org)
To recognize the responsible and influential role of those administrators outside the school library department in developing successful school library programs. (glma-inc.org)
Mortgage brokers have a more influential role in providing support for people struggling to pay their bills. (mortgagebrokerstore.com)